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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.
Annual 1–50 cm, ± gray, cobwebby to tomentose.
Stem: 1, erect, or 2–10+, generally ascending to prostrate, ± forked at least distally, generally evenly leafy proximally, ± leafless between distal forks.
Leaf: alternate, ± sessile, linear to obovate or awl-shaped, entire; distal leaves subtending heads, crowded, largest > proximal leaves.
Inflorescence: heads disciform, ± sessile, generally 2–10(14) per group or some [all] single; involucre 0 or vestigial, simulated by paleae, or ± cup-like, then phyllaries various, << paleae; receptacle length [0.4]0.7–1.6 × width, obovoid to mushroom-shaped, glabrous; paleae, except innermost, each ± enclosing pappus-lacking pistillate flower, deciduous with fruit (sometimes tardily), ± boat-shaped, obtuse to acute, ± tomentose abaxially, obscurely parallel-veined, veins 5+, margin reflexed distally as scarious wing, wing prominent, terminal, erect to curved inward, visible in head; innermost paleae ± 5, collectively surrounding pappus-bearing disk + inner pistillate flowers, > outer, spreading at maturity, concave, lance- ovate, acute, cartilaginous, ± brown, ± glabrous.
Pistillate flower: (11)14–45+, generally only outer subtended by paleae; corolla obscure, narrowly cylindric.
Disk flower: bisexual, 2–10; pappus present; corolla 4–5-lobed; anther base tailed, tip ± triangular; style tips ± linear-oblong.
Fruit: obovoid to oblong; outer pistillate- flower fruit > inner, ± enclosed by palea, generally compressed laterally, smooth, shiny, corolla scar ± terminal, pappus 0; inner pistillate- flower fruit and disk fruit free of paleae, ± cylindric, generally ± papillate, dull, corolla scar terminal, pappus of (11)13–28+ deciduous bristles, visible in head, generally falling together in intact or broken ring.
12 species: sw North America, Eur, sw Asia, n Africa, some alien ± worldwide. (Anagram of Filago) [Morefield 2006 FNANM 19:443–447] Characters may be unreliable in young or dwarf plants. Formerly included in Filago in North America.
Unabridged note: 2 Eur aliens, Logfia arvensis(L.) Holub, Logfia minima (Sm.) Dumort. occur near CA.
1. Lf generally awl-shaped, stiff; phyllaries generally 5, equal, unlike paleae; outer paleae bent inward 70–90°, longest 3.3–4.1 mm, body hard ..... L. gallica
1' Lf generally elliptic to obovate or ± linear, flexible; phyllaries 0 or 1–4, unequal, like vestigial paleae; outer paleae curved inward 20–60°, longest 2.1–3.3 mm, body membranous to cartilaginous
2. St generally leafless between proximal forks, becoming ± purple to black, ± glabrous; heads 4–10 per group, only at stem forks and tips; distal leaves ± linear, generally 2–5 × heads; pappus-bearing inner flowers 4–12, (0)1–2 pistillate ..... L. arizonica
2' St ± evenly leafy proximally, green to ± gray or ± white, cobwebby to tomentose; heads (1)2–5 per group, not only at stem forks and tips; distal leaves elliptic to obovate, 0.8–2(3) × heads; pappus-bearing inner flowers (12)17–40+, (4)10–35 pistillate
3. St (1)3–10+, forked ± throughout; largest leaves 6–8(10) mm, 1–2 mm wide; distal leaves obtuse; outer palea body, except midvein, membranous; disk corolla lobes generally 5, ± yellow to ± brown; outer fruit 0.7–0.9 mm; inner fruit generally smooth, pappus bristles (11)13–15, falling separately or in 2s ..... L. depressa
3' St 1(7), generally forked distally, central axis dominant; largest leaves 10–15(20) mm, 2–3(4) mm wide; distal leaves generally acute; outer palea body ± cartilaginous; disk corolla lobes generally 4, ± bright red to purple; outer fruit 0.9–1 mm; inner fruit ± papillate, pappus bristles 17–23+, falling together in intact or broken ring ..... L. filaginoides
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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