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Key to families | Table of families and genera
This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press.
Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.
Perennial, sometimes flowering first yr or annual, ± leafy; ± glabrous to silvery- strigose.
Leaf: 1–15 cm; leaflets generally 11–27(29), linear to widely ± ovate.
Inflorescence: flowers 3–± 50, ascending or spreading.
Flower: petals ± purple, cream, ± white, or mixed ± purple and ± white, keel 0.65–0.8 × banner, banner recurved 30–50°.
Fruit: variable but generally ovate or spheric, widely grooved above and below, generally ± bladdery, ± papery, deciduous; stalk-like base 0; beak generally triangular, flat; chambers 2 below beak.
2n=22. Highly variable; vars. often distinct, yet intermediates are common; flower, fruit both needed for identification. [Online Interchange]
1. Lflets 3–5, linear-oblanceolate ..... var. piscinensis
1' Lflets generally >= 7, often wider than linear-oblanceolate
2. Calyx generally > 6.5 mm; keel 8.4–15 mm;
3. Plants of CA-FP
4. Infl 7–20-flowered, 1–4 cm in fruit; petals pink-purple; herbage hairs subappressed ..... var. idriensis
4' Infl 10–32-flowered, 4–15 cm in fruit; petals purple, ± yellow, or white; herbage hairs ± spreading or ± appressed
5. Petals cream to ± yellow; herbage hairs ± spreading ..... var. nigricalycis
5' Petals purple (white); herbage hairs ± appressed ..... var. variabilis (4)
3' Plants of GB, D
6. Petals ± white, pink-tinged; MP ..... var. chartaceus
6' Petals generally purple or ± pink; SNE (Inyo Co.), D
7. Herbage sparsely hairy, ± green, or if densely hairy then generally either fruit sparsely hairy or calyx lobes < 1.4 mm
8. St prostrate, > 60 cm; moist alkaline flats, extreme n DMoj ..... var. sesquimetralis
8' St ascending or spreading, < 50 cm; generally sand, widespread ..... var. variabilis (4)
7' Herbage hairs dense, silvery, ± gray, or ± white, fruit densely hairy, calyx lobes > 1.4 mm
9. Fr ± swollen, < 7 mm wide, upper suture concave in side view; e DMoj, s DSon ..... var. borreganus
9' Fr swollen, often bladdery, > 8 mm wide, upper suture convex in side view; n DMoj, nw DSon
10. Plant base not woody; DSon (Coachella Valley) ..... var. coachellae
10' Plant base ± woody; n DMoj (Eureka Valley) ..... var. micans
2' Calyx generally < 6.5 mm; keel 5.5–10 mm (8.4–12.3 mm in Astragalus lentiginosus var. variabilis)
11. Lflet densely hairy, ashy-gray or silvery, at least on 1 side
12. Fr beak curved down, away from stem; clayey, alkaline flats, seeps; SNE, w DMoj ..... var. albifolius
12' Fr beak straight or curved up, toward stem; various habitats, generally except clayey, alkaline flats, seeps; DMoj, CA-FP
13. Fr cluster < 4 cm; dry slopes in open pine forest; SnGb ..... var. antonius
13' Fr cluster > 4 cm; gravel or sand on flats, washes, valleys with creosote, sagebrush, pinyon/juniper; DMoj, s CA-FP
14. Keel 5.6–8.5 mm; fruit hairs 0 to sparse; generally e DMoj ..... var. fremontii (2)
14' Keel > (8)8.5 mm; fruit hairs sparse to dense; generally w DMoj ..... var. variabilis (4)
11' Lflet sparsely hairy or ± glabrous, green (sometimes densely hairy, ± gray in Astragalus lentiginosus var. ineptus)
15. Plants of MP, n SNE (from c Mono Co.), ± ne CA-FP
16. Fr stiff-papery, ± opaque, minutely hairy at least in youth, often little inflated, not bladdery, strongly incurved ..... var. lentiginosus
16' Fr thinly papery, translucent, ± glabrous, bladdery, ± straight
17. Fr cluster dense; stem generally with several to many branches in lower 1/2, generally > 25 cm ..... var. floribundus
17' Fr cluster ± open; stem generally with 0–few branches in lower 1/2, generally < 30 cm ..... var. salinus
15' Plants of s CA-FP, SNE, D
18. Petals generally bright pink-purple; fruit 12–36 mm
19. Keel generally < 8.5 mm ..... var. fremontii (2)
19' Keel generally > 8.5 mm ..... var. variabilis (4)
18' Petals generally ± white, sometimes pink-tinged; fruit 6–22 mm
20. Fr beak ± cylindric, slender; calyx lobes generally < 1.2 mm, acute, slender — s SNH ..... var. kernensis
20' Fr beak flat, ± triangular; calyx lobes often > 1.2 mm, acute, slender (if < 1.2 mm, then blunt, triangular)
21. Calyx lobes < 1.2 mm, blunt, triangular; TR ..... var. sierrae
21' Calyx lobes > 1.2 mm, acute, slender; SNH, SNE
22. Lf 1.5–5.5 cm, leaflets 9–21, crowded; SNH, SNE ..... var. ineptus
22' Lf 4–9 cm, leaflets 13–27, ± spaced; W&I ..... var. semotus
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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