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| Jepson eFlora
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. |
Annual to shrub, ± woolly.
Leaf: generally alternate, proximal sometimes opposite, entire to nearly compound.
Inflorescence: heads 1–many, generally radiate; often in ± flat-topped clusters; involucre obconic to hemispheric; phyllaries 4–13(15) in 1 series, free or ± fused; receptacle flat to columnar, smooth or pitted (occasionally 1–6 palea-like scales at tip).
Ray flower: 0 or generally ± 1 per phyllary; ray entire to lobed, generally yellow (white).
Disk flower: (3)10–300; corolla yellow; anther tip ovate, deltate or awl-shaped; style tips ± ovate, papillate.
Fruit: 4(5)-angled or outer fruits flattened, inner fruits generally club-shaped; pappus of 0–15 ± jagged or fringed scales.
13 species: w North America. (Greek: woolly leaf) [Johnson & Mooring 2006 FNANM 21:353–362] Eriophyllum nevinii moved to Constancea.
Unabridged references: [Mooring 2002 Amer J Bot 89:1973–1983]
1. Annual 0.1–1.5(3) dm
2. Peduncle < 1 cm
3. Heads radiate ..... E. multicaule
3' Heads discoid
4. Lf weakly rolled under, tip sharp-pointed; phyllaries 3–4 ..... E. mohavense
4' Lf margins strongly rolled under, tip rounded; phyllaries 6–8 ..... E. pringlei
2' Peduncle >= 1 cm
5. Anther tip awl-like; disk corolla lobes glandular; ray white to yellow
6. Pappus of alternating long and short scales; fruit 2.5–4.5 mm; ray white ..... E. lanosum
6' Pappus 0 or of ± = scales; fruit ± 2 mm; ray yellow, occasionally cream-white ..... E. wallacei
5' Anther tip deltate; disk corolla lobes glandless; ray yellow
7. Pappus 0 or of minute scales; anther tip glabrous; s SNF, Teh, SNE, D ..... E. ambiguum
8. Disk corolla lobes glabrous; pappus of 6–10 irregularly toothed scales 0.2–0.5 mm ..... var. ambiguum
8' Disk corolla lobes with 1-celled hairs; pappus 0 or scales entire, 0.1–0.2 mm ..... var. paleaceum
7' Pappus of scales >= 0.5 mm; anther tip glandular; c SN (Mariposa Co.)
9. Branches open, spreading; ray 3–5 mm; 500–1900 m ..... E. congdonii
9' Branches strictly ascending; ray ± 1 mm; 1800–2500 m ..... E. nubigenum
1' Generally perennial herbs to shrub, occasionally flowering first yr, 1–15 dm
10. Subshrub or shrub; heads 1–30+; peduncle 0–10(14) cm; ray 2–10 mm
11. Subshrub 3–15 dm; phyllaries 8–11; ray flowers (0)6–9; ray 3–5 mm; coastal dunes, bluffs, canyons ..... E. staechadifolium
11' Subshrub or shrub, 2–10 dm; phyllaries 4–8; ray flowers (0)4–8, ray 2–10 mm; generally non-coastal
12. Heads 1–5; peduncle 5–10(14) cm; ray flowers 5–8, ray 6–10 mm — SnFrB, SCoRI ..... E. jepsonii
12' Heads 3–30+; peduncle 0–2.5(9) cm; ray flowers (0)4–6(8), ray 2–5 mm ..... E. confertiflorum
13. Heads 10–30+; peduncle 0–1(2) cm; involucre 3–5 mm diam; disk corolla 2–3 mm ..... var. confertiflorum
13' Heads 3–10; peduncle 0.5–2.5(9) cm; involucre 5–7 mm diam; disk corolla 3.5–4 mm ..... var. tanacetiflorum
10' Annual to subshrub, woody at base only; heads 1–5(10); peduncle (1)3–30 cm; ray 6–20 mm
14. Involucre 5–6(7) mm diam; peduncle 1–8 cm; ray flowers 6–8(13), ray generally 6–10 mm; rare; c-w SnFrB (San Mateo Co.) ..... E. latilobum
14' Involucre 6–15 mm diam; peduncle 3–30 cm; ray flowers (0)5–13(15), ray 6–20 mm; not rare; widespread complex ..... E. lanatum
15. Tube of disk flower glabrous; rare, s Teh, se SCoRO ..... var. hallii
15' Tube of disk flower very glandular or hairy; widespread
16. Ray flowers generally 8(5–10); phyllaries generally 8(5–10), strongly keeled; leaves entire or 3-(5-)lobed, margins flat ..... var. integrifolium
16' Ray flowers generally 9–13, keeled or flat; leaves entire to nearly compound, margins flat or rolled under
17. Lvs densely woolly on faces, entire or coarsely toothed (especially distal to middle), margins flat
18. Ray 7–10 mm; KR, NCoRH ..... var. lanceolatum
18' Ray 6–7 mm; s SNH, SnBr ..... var. obovatum
17' Lvs less hairy, (often green) adaxially, entire to nearly compound, margins rolled under
19. Lvs linear to ovate, entire to 2-compound, often woolly-tufted adaxially; pappus 0.5–1.5 mm; peduncle 3–30 cm; ray yellow
20. Lvs 1–3 cm, lobed to ± 2-pinnately compound; peduncle 3–10 cm, generally slender; involucre 6–8 mm; ray 6–9 mm ..... var. achilleoides
20' Lvs 3–8 cm, entire to pinnately lobed; peduncle 10–30 cm, generally swollen proximal to heads; involucre 8–10 mm; ray 10–20 mm ..... var. grandiflorum
19' Lvs narrowly oblanceolate or wider, serrate to sharply lobed, glabrous adaxially; pappus 0 or minute; peduncle 3–10 cm; ray golden yellow
21. Lvs ± diamond-shaped, proximal sharply 3–5 lobed, woolly-tufted abaxially; coastal ..... var. arachnoideum
21' Lvs oblanceolate to obovate, coarsely serrate or lobed distally, silky-woolly abaxially; SNH ..... var. croceum
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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