Mentzelia albicaulis Hook. (Small Flowered Blazing Star, White Stemmed Stickleaf, White Stemmed Blazing Star, Whitestem Blazingstar)

Journal entry: 2013 June 2. Genus (Mentzelia) identification by Orrin. Species ID by local USFS botanist from pressed specimen. The calflora.org site gives the binomial/author as M. albicaulis Hook., whereas TJM2 gives it as M. albicaulis (Hook.) Torr. & A. Gray. Assume that calflora.org is the most correct.

Posted in Loasaceae (Loasa F.), Mentzelia | Leave a comment

Mentzelia dispersa S. Watson (Nada Stickleaf, Bushy Blazingstar, Scattered Blazing Star)

Journal entry: 2013 June 2. Genus (Mentzelia) identification by Orrin. Species ID by local USFS botanist from pressed specimen.

Posted in Loasaceae (Loasa F.), Mentzelia | Leave a comment

Trichostema simulatum Jeps. (Siskiyou Blue Curls)


Journal entry: 2012 July 3. Incredibly pungent odor. Disused dirt road off Cheney Creek Rd, and in nearby disturbed ground.

Posted in Lamiaceae (Labiatae) (Mint Family), Trichostema | Leave a comment

Bromus briziformis Fischer & C. Meyer (Rattlesnake Chess, Rattlesnake Brome)


Journal entry: 2012 June 20. Identity confirmed by USFS botanist, Lassen NF. Widespread grass in the Juniper/Jeff Pine woodland off Cheney Creek Rd.

Posted in Bromus, Poaceae (Gramineae) (Grass F.) | Leave a comment

Acmispon americanus (Nutt.) Rydb. var. americanus (Spanish Lotus)


Journal entry: 2012 June 20. Disused dirt road off Cheney Creek Rd; disturbed ground.

Posted in Acmispon, Fabaceae (Legume or Pea F.) | Leave a comment

Navarretia intertexta (Benth.) Hook. ssp. intertexta (Interwoven Navarretia, Needleleaf Navarretia)


Journal entry: 2012 June 20. Identity confirmed by USFS botanist, Lassen NF. Disused dirt road off Cheney Creek Rd, in a depression that may have been very wet during the winter and spring months.

Posted in Navarretia, Polemoniaceae (Phlox F.) | Leave a comment

Astragalus purshii Douglas var. tinctus M.E. Jones (Pursh’s Milkvetch)


Journal entry: 2012 June 10. In fruit; resembling cotton balls.

Posted in Astragalus, Fabaceae (Legume or Pea F.) | Leave a comment

Robinia pseudoacacia L. (Black Locust)


Journal entry 2011 May 28. At least three trees along paved bike trail alongside the Susan River, urban/suburban Susanville. According to the literature, the flowers are edible when fried, but the ripe seeds (“peas”) are extremely toxic.

Posted in Fabaceae (Legume or Pea F.), Robinia | 2 Comments

Agoseris retrorsa (Benth.) E. Greene (Spearleaf Mountain Dandelion, Spear Leaved Agoseris, Spearleaf Agoseris)



Journal entry: 2012 May 15

Posted in Agoseris, Asteraceae (Compositae) (Sunflower F.) | Leave a comment

Alyssum desertorum Stapf.



Journal entry: 2012 May 12

Posted in Alyssum, Brassicaceae (Cruciferae) (Mustard F.) | Leave a comment

Calyptridium umbellatum (Torr.) Greene (Pussypaws, Pussy Toes, Cistanthe)


Journal entry: 2012 May 12

Posted in Calyptridium, Montiaceae (Miner's Lettuce F.) | Leave a comment

Agoseris glauca (Pursh.) Raf. var glauca (Short-beaked Agoseris, Mountain Dandelion)


Journal entry: 2012 May 6.

Posted in Agoseris, Asteraceae (Compositae) (Sunflower F.) | Leave a comment

Calocedrus decurrens (Torrey) Florin (Incense-Cedar, Bastard Cedar, Post Cedar, White Cedar)


Journal entry: 2012 Mar 26
Was: Libocedrus decurrens Torr. (JM93)
Now: Calocedrus decurrens (Torrey) Florin (TJM2)

Posted in Calocedrus, Cupressaceae (Cypress F.) | Leave a comment

Madia elegans Lindley ssp elegans (Common Madia, Tarweed)


Journal entry: 2011 August 31. Ray achenes strongly compressed, ligules conspicuous. No real basal rosette. Stems hairy below, densely glandular-hairy above with dark sticky exudate.

Posted in Asteraceae (Compositae) (Sunflower F.), Madia | Leave a comment

Lomatium nudicaule (Pursh.) J.Coulter & Rose (Pestle Parsnip, Barestem Biscuitroot, Pestle Lomatium)


Journal entry: 2011 July 26. 2km SW of Susanville, elev 1500m.

Posted in Apiaceae (Umbelliferae) (Carrot F.), Lomatium | Leave a comment

Eriogonum vimineum Benth. (Wicker-stemmed Eriogonum, Wicker Buckwheat, Wickerstem Buckwheat)


Journal entry: 2011 July 26. 2km SW of Susanville.

Posted in Eriogonum, Polygonaceae (Buckwheat F.) | Leave a comment

Melilotus officinalis (L.) Pall. (Yellow Sweetclover)


Journal entries: 2009 July 11; 2011 July 20. Roadside weed.

Posted in Fabaceae (Legume or Pea F.), Melilotus | Leave a comment

Lepidium perfoliatum L. (Klamath Pepper Grass, Shield Cress, Shield Peppergrass, Clasping Pepperweed)


Journal entry: 2011 July 17. Identification was based on a pressed/dried specimen collected in early June in a vacant agricultural field very close to the Rt 36 bridge over the Susan River, just east of the city of Susanville. Basal leaves dissected; cauline leaves round and surrounding stem.

Posted in Brassicaceae (Cruciferae) (Mustard F.), Lepidium | Leave a comment

Gayophytum diffusum Torrey & A. Gray (Gayophytum, Spreading Groundsmoke, Diffuse Gayophytum)


Journal entry: 2011 July 16. Two yellowish spots at the base of each petal. Petals 4mm long; plants very branched and about 4dm tall. I was unable to determine the subspecies; petals >3mm keyed to G. diffusum. The left-most image above was deliberately over-processed to display some details. To the naked eye, the petals had a very very slight pink-violet tinge, barely so.

Posted in Gayophytum, Onagraceae (Evening Primrose F.) | Leave a comment

Penstemon roezlii Regel (Regel’s Mountain Penstemon)


Journal entry: 2011 July 4
Plant has a woody base.
Was: family Scrophulariaceae, genus Penstemon (JM93)
Now: family Plantaginaceae, genus Penstemon (TJM2)

Posted in Penstemon, Plantaginaceae (Plantain F.) | Leave a comment

Penstemon sudans M.E. Jones (Susanville Beardtongue, Volcanic Beardtongue)


Journal entry: 2011 July 4
Plant sticky throughout, fairly densely glandular-hairy. Jepson says plant > 40cm and <70cm but these were <40cm. Corolla very hairy, inside and outside petals. Calyx densely glandular-hairy.
Was: family Scrophulariaceae, genus Penstemon (JM93)
Now: family Plantaginaceae, genus Penstemon (TJM2)

Posted in Penstemon, Plantaginaceae (Plantain F.) | Leave a comment

Urtica dioica L. ssp holosericea (Nutt.) Thorne (Hoary Nettle, Stinging Nettle, Mountain Nettle, Giant Creek Nettle)


Journal entry: 2011 July 3

Posted in Urtica, Urticaceae (Nettle F.) | Leave a comment

Lupinus argenteus Pursh (Silvery Lupine)


Journal entry: 2011 June 30

Posted in Fabaceae (Legume or Pea F.), Lupinus | Leave a comment

Eremogone congesta (Nutt.) Ikonn. (Ballhead Sandwort, Capitate Sandwort)


Journal entry: 2011 June 27
Was: family Caryophyllaceae, genus Arenaria (JM93)
Now: family Caryophyllaceae, genus Eremogone (TJM2)

Posted in Caryophyllaceae (Pink F.), Eremogone | Leave a comment

Astragalus inversus M.E. Jones (Susanville Milk Vetch, Susanville Milkvetch)


Journal entry: 2011 June 23

Posted in Astragalus, Fabaceae (Legume or Pea F.) | Leave a comment

Wyethia mollis A. Gray (Mule Ears, Woolly Mule’s Ears, Mountain Mule Ears, Woolly Mule Ears)


Journal entries: 2009 May 24; 2011 2011 June 23

Posted in Asteraceae (Compositae) (Sunflower F.), Wyethia | Leave a comment

Lotus crassifolius (Benth.) E. Greene (Buck Lotus, Big Deervetch, Broad-leaved Lotus)


Journal entry: 2011 June 19. Leaf stipules scarious, leaflets 9-15, 2-3 cm, lower surface pale. Infl 12-20-fld, peduncle bract well below umbel. Corolla yellow-green becoming red-purple toward tips, claws exserted from calyx tube. Prominent vegetation: Quercus kelloggii, Ceanothus cuneatus, Pinus jeffreyi, Vicia americana, Purshia tridentata. 2 km SW of Susanville.
Was: Lotus crassifolius (Benth.) E. Greene, genus Lotus, family Fabaceae (JM93)
Now: Hosackia crassifolia Benth., genus Hosackia, family Fabaceae (TJM2)

Posted in Fabaceae (Legume or Pea F.), Hosackia | Leave a comment

Asclepias cordifolia (Benth.) Jeps. (Purple Milkweed, Heart-leaf Milkweed, Heartleaf Milkweed)


    Journal entries: 2009 June 12, 3 km SSW of Susanville; 2011 June 19, 2 km SW of Susanville.
    Was: family Asclepiadaceae, genus Asclepias (JM93).
    Now: family Apocynaceae, genus Asclepias (TJM2).

Posted in Apocynaceae (Dogbane F.), Asclepias | Leave a comment

Ceanothus cuneatus (Hook.) Nutt. (Wedgeleaf Ceanothus, Buck Brush)


Journal entries: 2010 June 9; 2011 June 18

Posted in Ceanothus, Rhamnaceae (Buckthorn F.) | Leave a comment

Allium campanulatum S. Watson (Sierra Onion, Dusky Onion)


Journal entries: 2010 June 9; 2011 June 18. On 2011 June 18: lvs 2 per stem. Ovary crests 6, prominent and triangular. Lvs withered in flower; perianth rigid-keeled with tip-margins rolled inward. Outer coat of bulb: sculptures +- square, walls very wavy. Location: 2 km SW of Susanville; prominent vegetation includes Pinus jeffreyi, Cercocarpus ledifolius intermontanus, Purshia tridentata.
Was: family Liliaceae, genus Allium (JM93)
Now: family Alliaceae, genus Allium (TJM2)

Posted in Alliaceae (Onion or Garlic F.), Allium | Leave a comment

Clarkia lassenensis (Eastw.) Harlan Lewis & M. Lewis (Lassen Clarkia, Lassen Godetia)


Journal entries: 2009 June 12; 2011 June 9
The microscope shot is of petal tissue at 400X.

Posted in Clarkia, Onagraceae (Evening Primrose F.) | Leave a comment

Arabis holboellii Hornem. (Holboell’s Rock Cress)


Journal entry: 2011 June 5

Posted in Arabis, Brassicaceae (Cruciferae) (Mustard F.) | Leave a comment

Quercus kelloggii Newb. (Black Oak, California Black Oak)


Journal entry: 2011 May 31

Posted in Fagaceae (Oak F.), Quercus | Leave a comment

Blepharipappus scaber Hook. (Rough Eyelash, Blepharipappus, Rough Blepharipappus, Rough Eyelashweed)


Journal entry: 2011 May 24

Posted in Asteraceae (Compositae) (Sunflower F.), Blepharipappus | Leave a comment

Vicia americana Muhl. ex Willd. (American Vetch, Vetch)


Journal entries: 2010 June 16; 2011 May 24
Was: Vicia americana Willd. var americana (JM93)
Now: Vicia americana Muhl. ex Willd. (TJM2)

Posted in Fabaceae (Legume or Pea F.), Vicia | Leave a comment

Pseudotsuga menziesii (Mirb.) Franco (Douglas Fir)


Journal entry: 2011 May 20

Posted in Pinaceae (Pine F.), Pseudotsuga | Leave a comment

Eschscholzia californica Cham. (California Poppy)


Journal entry: 2011 May 18

Posted in Eschscholzia, Papaveraceae (Poppy F.) | 2 Comments

Plectritis macrocera Torrey & A. Gray (Plectritis, White Plectritis, Long-horn Plectritis, Longhorn Plectritis)


Journal entry: 2011 May 14

Posted in Plectritis, Valerianaceae (Valerian F.) | Leave a comment

Ribes velutinum E. Greene (Desert Gooseberry)


Journal entry: 2011 May 7

Posted in Grossulariaceae (Gooseberry F.), Ribes | Leave a comment

Lithophragma glabrum Nutt. (Bulbous Woodlandstar, Rock Star, Bulbed Woodland Star, Bulbous Woodland Star)


Journal entries: 2011 April 30; 2012 May 9

Posted in Lithophragma, Saxifragaceae (Saxifrage F.) | Leave a comment

Microsteris gracilis (Hook.) Greene (Slender Phlox)


Journal entry: 2011 April 26
Was: Phlox gracilis (Hook.) E.Greene, genus Phlox, family Polemoniaceae (JM93)
Now: Microsteris gracilis (Hook.) Greene, genus Microsteris, family Polemoniaceae (TJM2)

Posted in Microsteris, Polemoniaceae (Phlox F.) | Leave a comment

Draba verna L. (Whitlow Grass, Whitlowgrass, Spring Draba)


Journal entry: 2011 April 16

Posted in Brassicaceae (Cruciferae) (Mustard F.), Draba | Leave a comment

Linaria dalmatica (L.) Mill. ssp dalmatica

Journal entry: 2010 September 8
Was: Linaria genistifolia (L.) Miller ssp dalmatica (L.) Maire & Petitm., genus Linaria, family Scrophulariaceae (JM93)
Now: Linaria dalmatica (L.) Mill. ssp dalmatica, genus Linaria, family Plantaginaceae (TJM2)

Posted in Linaria, Plantaginaceae (Plantain F.) | Leave a comment

Ericameria nauseosa (Pall.) G.L. Nesom & G.I. Baird var speciosa (Nutt.) C.L. Nesom (Rubber Rabbitbrush)


Journal entry: 2010 September 5
Was: Chrysothamnus nauseosus (Pallas) Britton ssp albicaulis (Nutt.) H.M. Hall & Clements, genus Chrysothamnus, family Asteraceae (JM93)
Now: Ericameria nauseosa (Pall.) G.L. Nesom & G.I. Baird var speciosa (Nutt.) C.L. Nesom, genus Ericameria, family Asteraceae (TJM2)

Posted in Asteraceae (Compositae) (Sunflower F.), Ericameria | Leave a comment

Sambucus nigra L. ssp caerulea (Raf.) R.Bolli (Blue Elderberry)


Journal entry: 2010 September 5
Was: Sambucus mexicana C. Presl., family Caprifoliaceae, genus Sambucus (JM93)
Now: family Adoxaceae, genus Sambucus (TJM2)

Posted in Adoxaceae (Muskroot F.), Sambucus | Leave a comment

Epilobium brachycarpum C. Presl. (Fireweed, Parched Fireweed)



Journal entries: 2010 September 1; 2011 August 31

Posted in Epilobium, Onagraceae (Evening Primrose F.) | Leave a comment

Achillea millefolium L. (Yarrow, Common Yarrow)


Journal entry: 2010 August 18

Posted in Achillea, Asteraceae (Compositae) (Sunflower F.) | Leave a comment

Mentzelia laevicaulis (Hook.) Torrey & A. Gray (Smoothstem Blazingstar, Smooth Stem Blazing Star, Giant Blazingstar, Blazing Star)


Journal entry: 2010 August 18

Posted in Loasaceae (Loasa F.), Mentzelia | Leave a comment

Argemone munita Durand & Hilg. (Prickly Poppy, Chicalote)


Journal entry: 2010 July 19

Posted in Argemone, Papaveraceae (Poppy F.) | Leave a comment

Collomia grandiflora Lindley (Grand Collomia, Mountain Collomia, Large-flowered Collomia)


Journal entry: 2010 June 29

Posted in Collomia, Polemoniaceae (Phlox F.) | Leave a comment

Penstemon speciosus Lindley (Royal Beardtongue, Royal Penstemon, Showy Penstemon)


Journal entry: 2010 June 29.
Was: family Scrophulariaceae, genus Penstemon (JM93)
Now: family Plantaginaceae, genus Penstemon (TJM2)

Posted in Penstemon, Plantaginaceae (Plantain F.) | Leave a comment

Phacelia heterophylla Pursh ssp virgata (E. Greene) Heckard (Phacelia, Virgate Phacelia, Varied-leaf Phacelia, Varileaf Phacelia)

b


Journal entry: 2010 June 27
Was: family Hydrophyllaceae, genus Phacelia (JM93)
Now: family Boraginaceae, genus Phacelia (TJM2)

Posted in Boraginaceae (Borage F.), Phacelia | Leave a comment

Calystegia occidentalis (A. Gray) Brummitt ssp occidentalis (Modoc Morning Glory, Chaparral False Bindweed, Western Morning Glory)


Journal entry: 2010 June 20

Posted in Calystegia, Convolvulaceae (Morning-glory F.) | Leave a comment

Dichelostemma multiflorum (Benth.) A.A. Heller (Many-flowered Brodiaea, Manyflower Brodiaea, Roundtooth Snakelily, Wild Hyacinth)


Journal entries: 2010 June 20; 2011 June 23
Was: family Liliaceae, genus Dichelostemma (JM93)
Now: family Themidaceae, genus Dichelostemma (TJM2)

Posted in Dichelostemma, Themidaceae (Brodiaea F.) | Leave a comment

Cirsium cymosum (E. Greene) Jepson (Peregrine Thistle)


Journal entry: 2010 June 19

Posted in Asteraceae (Compositae) (Sunflower F.), Cirsium | Leave a comment

Centaurea cyanus L. (Batchelor Button, Garden Cornflower)


Journal entry: 2010 June 19

Posted in Asteraceae (Compositae) (Sunflower F.), Centaurea | Leave a comment

Calochortus leichtlinii Hook. f. (Smokey Mariposa, Leichtlin’s Mariposa Lily)


Journal entries: 2008 May 25; 2010 June 18

Posted in Calochortus, Liliaceae (Lily F.) | Leave a comment

Lathyrus brownii Eastw. (Brown’s Brush Pea)


Journal entry: 2010 June 16

Posted in Fabaceae (Legume or Pea F.), Lathyrus | Leave a comment

Clarkia rhomboidea Douglas (Forest Clarkia, Diamond Clarkia)


Journal entry: 2010 June 12

Posted in Clarkia, Onagraceae (Evening Primrose F.) | Leave a comment

Galium aparine L. (Stickywilly, Common Bedstraw, Cleavers, Goose Grass)


Journal entry: 2009 May 17; 2010 June 3

Posted in Galium, Rubiaceae (Madder F.) | Leave a comment

Castilleja applegatei Fern. (Wavy-leaved Paintbrush, Pine Indian Paintbrush, Wavy-leaf Paintbrush)


Journal entry: 2010 May 31
Was: family Scrophulariaceae, genus Castilleja (JM93)
Now: family Orobanchaceae, genus Castilleja (TJM2)

Posted in Castilleja, Orobanchaceae (Broom-rape F.) | Leave a comment

Amelanchier utahensis Koehne (Pale-leaved Serviceberry, Serviceberry, Utah Service Berry, Western Serviceberry)


Journal entries: 2010 May 24; 2012 May 9
The pink veins in some of the petals is not typical. Most flowers had no pink veins.

Posted in Amelanchier, Rosaceae (Rose F.) | Leave a comment

Claytonia rubra (Howell) Tidestrom ssp rubra (Redstem Springbeauty, Red Stemmed Miner’s Lettuce)


Journal entry: 2010 May 16
Was: family Portulacaceae, genus Claytonia (JM93).
Now: family Montiaceae, genus Claytonia (TJM2).

Posted in Claytonia, Montiaceae (Miner's Lettuce F.) | Leave a comment

Phlox speciosa Pursh (Showy Phlox, Western Showy Phlox)


Journal entry: 2010 May 13

Posted in Phlox, Polemoniaceae (Phlox F.) | Leave a comment

Toxicoscordion venenosum (S. Watson) Rydb. var venenosum (Death Camas, Meadow Deathcamas)


Journal entry: 2010 May 12
Was: Zigadenus venenosus S. Watson var. venenosus, in the Liliaceae (JM93)

Posted in Melanthiaceae (False-Hellebore F.), Toxicoscordion | Leave a comment

Olsynium douglasii (A. Dietr.) E.P. Bicknell (Douglas’ Grasswidow)


Journal entries: 2010 May 9; 2011 Apr 19
Was: Sisyrinchium douglasii A. Dietr. var douglasii (JM93), genus Sisyrinchium, family Iridaceae (JM93)
Now: Olsynium douglasii (A. Dietr.) E.P. Bicknell, genus Olsynium, family Iridaceae (TJM2)

Posted in Iridaceae (Iris F.), Olsynium | Leave a comment

Hydrophyllum capitatum Douglas var alpinum S. Watson (Alpine Waterleaf, Woolen Breeches)


Journal entry: 2010 May 2
Was: family Hydrophyllaceae, genus Hydrophyllum (JM93)

Posted in Boraginaceae (Borage F.), Hydrophyllum | Leave a comment

Viola purpurea Kellogg (Mountain Violet, Goosefoot Violet)


Journal entry: 2010 May 2

Posted in Viola, Violaceae (Violet F.) | Leave a comment

Collinsia parviflora Lindley (Blue Eyed Mary, Few-flowered Blue-eyed Mary, Small-flowered Blue-eyed Mary, Maiden Blue-eyed Mary, Small-flowered Collinsia)



Journal entries: 2010 April 21; 2012 May 9
Was: family Scrophulariaceae, genus Collinsia (JM93)
Now: family Plantaginaceae, genus Collinsia (TJM2)

Posted in Collinsia, Plantaginaceae (Plantain F.) | Leave a comment

Viola beckwithii Torrey & A. Gray (Great Basin Violet, Beckwith’s Violet)



Journal entry: 2010 April 10

Posted in Viola, Violaceae (Violet F.) | Leave a comment

Purshia tridentata (Pursh) DC (Bitterbrush, Antelope Bush, Antelope Bitterbrush)


Journal entry: 2010 January 21

Posted in Purshia, Rosaceae (Rose F.) | Leave a comment

Cercocarpus ledifolius Nutt. var intermontanus N. Holmgren (Curl-leaf Mountain Mahogany)



Journal entry: 2009 October 24
Was: Cercocarpus ledifolius var intercedens (JM93)

Posted in Cercocarpus, Rosaceae (Rose F.) | Leave a comment

Saponaria officinalis L. (Soapwort, Bouncing Bet, Bouncingbet)


Journal entry: 2009 August 20

Posted in Caryophyllaceae (Pink F.), Saponaria | Leave a comment

Prunus virginiana L. var demissa (Nutt.) Torrey (Western Choke-Cherry)


Journal entry: 2009 August 20

Posted in Prunus, Rosaceae (Rose F.) | Leave a comment

Helianthus annuus L. (Sunflower, Common Sunflower, Hairy-leaved Sunflower)


Journal entry: 2009 August 5

Posted in Asteraceae (Compositae) (Sunflower F.), Helianthus | Leave a comment

Centaurea virgata Lam. ssp squarrosa (Boiss.) Gugler (Spreading Thistle)


Journal entry: 2009 July 11
Was: C. squarrosa Willd. in JM93.

Posted in Asteraceae (Compositae) (Sunflower F.), Centaurea | Leave a comment

Cichorium intybus L. (Chicory)


Journal entry: 2009 July 2

Posted in Asteraceae (Compositae) (Sunflower F.), Cichorium | Leave a comment

Verbascum thapsus L. (Woolly Mullein, Common Mullein)


Journal entry: 2009 July 2

Posted in Scrophulariaceae (Figwort F.), Verbascum | Leave a comment

Typha latifolia L. (Common Cattail, Broadleaf Cattail, Cattail, Soft Flag)


Journal entry: 2009 June 30

Posted in Typha, Typhaceae (Cattail F.) | Leave a comment

Melilotus albus Medik. (White Sweetclover)


Journal entry: 2009 June 27

Posted in Fabaceae (Legume or Pea F.), Melilotus | Leave a comment

Solanum rostratum Dunal. (Buffalobur, Buffalo Berry, Buffalobur Nightshade)


Journal entry: 2009 June 23

Posted in Solanaceae (Nightshade F.), Solanum | Leave a comment

Convolvulus arvensis L. (Orchard Morning Glory, Bindweed, Field Bindweed)


Journal entry: 2009 June 23

Posted in Convolvulaceae (Morning-glory F.), Convolvulus | Leave a comment

Conium maculatum L. (Poison Hemlock)


Journal entry: 2009 June 21

Posted in Apiaceae (Umbelliferae) (Carrot F.), Conium | Leave a comment

Rosa woodsii Lindl. ssp ultramontana (S. Watson) Roy L. Taylor & MacBryde (Wild Rose, Woods’ Rose, Interior Rose)


Journal entry: 2009 June 21
Was: Rosa woodsii Lindl. var. ultramontana (S. Watson) Jeps. in JM93.

Posted in Rosa, Rosaceae (Rose F.) | Leave a comment

Chamomilla occidentalis (E. Greene) Rydb. (Chamomile, Valley Mayweed) [now: Matricaria occidentalis Greene]


Journal entry: 2009 June 19
I need to re-examine this sidewalk plant to verify it is
Matricaria or not.

Posted in Asteraceae (Compositae) (Sunflower F.), Chamomilla | Leave a comment

Tribulus terrestris L. (Puncturevine, Puncture Vine, Goathead)


Journal entry: 2009 June 17

Posted in Tribulus, Zygophyllaceae (Caltrop F.) | Leave a comment

Asclepias speciosa Torrey (Showy Milkweed)


Journal entry: 2009 June 11
Was: family Asclepiadaceae, genus Asclepias (JM93)
Now: family Apocynaceae, genus Asclepias (TJM2)

Posted in Apocynaceae (Dogbane F.), Asclepias | Leave a comment

Tragopogon dubius Scop. (Goat’s Beard, Yellow Salsify)


Journal entry: 2009 June 11

Posted in Asteraceae (Compositae) (Sunflower F.), Tragopogon | Leave a comment

Medicago sativa L. (Alfalfa)


Journal entry: 2009 June 11

Posted in Fabaceae (Legume or Pea F.), Medicago | Leave a comment

Ceanothus prostratus Benth. (Mahala Mats, Pinemat, Squaw Carpet)


Journal entry: 2009 May 12

Posted in Ceanothus, Rhamnaceae (Buckthorn F.) | Leave a comment

Delphinium nudicaule Torrey & A. Gray (Red Larkspur, Canyon Larkspur)


Journal entries: 2009 April 23; 2012 May 9

Posted in Delphinium, Ranunculaceae (Buttercup F.) | Leave a comment

Ranunculus glaberrimus Hook. (Sagebrush Buttercup, Smooth Buttercup)


Journal entries: 2009 April 15; 2012 April 16

Posted in Ranunculaceae (Buttercup F.), Ranunculus | Leave a comment

Juniperus occidentalis Hook. (Western Juniper)


Journal entry: 2007 November 23

Posted in Cupressaceae (Cypress F.), Juniperus | Leave a comment

Pinus jeffreyi Grev. & Balf. (Jeffrey Pine)


Journal entry: 2007 November 23

Posted in Pinaceae (Pine F.), Pinus | Leave a comment

My Lassen Flora

My Lassen Flora, by Orrin C. Winton (orrin.winton at gmail.com)



This is my site for plants I have identified while living in or near Susanville, Lassen County, California. Plants identified during the period 1976-2002 — other areas of California and Connecticut — are not included here.

On this, the main page, the posts have been arranged in reverse chronological order — most recent first. In the right-most column are categories by family, and by genus under each family.

The main page has thumbnails. To view a larger image, click on the thumbnail. From there, you may click on a link to get an even larger image.

To view links to plants by plant family or genus, click on the Category in the right-hand column. (If a family or genus name appears there, then there are photos/entries for some species of that family and/or genus.) That will take you to a list of posts of plant species; click on the desired species, and you will be taken to the full photo entry for that species.

Comments are welcome, including if you disagree with my identification. Plants shown are from Lassen County and/or the Lassen National Forest and/or the Lassen Volcanic National Park, no other areas. Of course, many of these species will be found in other areas.

Prints or digital downloads (without my logo) may be purchased: contact orrin.winton at gmail.com for information. The originals of these photos are most often much bigger (in bytes) than what is displayed here, because this site limits me to uploading 8MB per image. Photos with a more varied content can be found at orrinwintonphotography.com.

Nomenclature followed is that of:

THE JEPSON MANUAL (1993), James C. Hickman, Editor. Third printing with corrections, 1996.

Also useful have been:
A CALIFORNIA FLORA AND SUPPLEMENT (1959, 1968, 1973), by Philip A. Munz and David D. Keck.
A FIELD GUIDE TO PACIFIC STATES WILDFLOWERS (1976) (Peterson Field Guide), by Theodore F. Niehaus, Roger Tory Peterson and Charles L. Ripper.
MANUAL OF THE FLOWERING PLANTS OF CALIFORNIA (1925), by Willis Linn Jepson.
TREES AND SHRUBS OF CALIFORNIA (2001) (California Natural History Guides) by John D. Stuart, John O. Sawyer and Andrea J. Pickart.
GREAT BASIN WILDFLOWERS: A GUIDE TO COMMON WILDFLOWERS OF THE HIGH DESERTS OF NEVADA, UTAH, AND OREGON (2006), by Prof. Laird R Blackwell Ph.D.

Above: “Eating Claytonia rubra” — the local variety of Miner’s Lettuce :)

Posted in !Uncategorized | Leave a comment