| TREATMENT FROM THE JEPSON MANUAL (1993) |
previous taxon |
next taxon
Jepson Interchange (more information) |
|
|
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora. |
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY |
Annual, biennial, perennial herb (rarely shrub, tree), often from taproot
Stem often ± scapose, generally ribbed, hollow
Leaves basal and generally some cauline, generally alternate; stipules generally 0; petiole base generally sheathing stem; blade generally much dissected, sometimes compound
Inflorescence: umbel or head, simple or compound, generally peduncled; bracts present (in involucres) or not; bractlets generally present (in involucels)
Flowers many, small, generally bisexual (or some staminate), generally radial (or outer bilateral); calyx 0 or lobes 5, small, atop ovary; petals 5, free, generally ovate or spoon-shaped, generally incurved at tips, generally ± ephemeral; stamens 5; pistil 1, ovary inferior, 2-chambered, generally with a ± conic, persistent projection or platform on top subtending 2 free styles
Fruit: 2 dry, 1-seeded halves that separate from each other but generally remain attached for some time to a central axis; ribs on each half 5, 2 marginal and 3 on back; oil tubes 1–several per interval between ribs
Genera in family: 300 genera, 3,000 species: ± worldwide, especially temp; many cultivated for food or spice (e.g., Carum, caraway; Daucus; Petroselinum); some highly toxic (e.g., Conium). Underground structures here called roots, but true nature remains problematic. Mature fruit generally critical in identification; shapes generally given in outline, followed by shape in X -section of 2 fruit halves together.
Perennial from taproot or generally deep-seated tuber, glabrous to tomentose
Stem 0 or erect, simple or branched; base fibrous (from old leaf sheaths) or not
Leaf: blade oblong to triangular-ovate or obovate, ternately, pinnately, or ternate-pinnately dissected or compound, segments or leaflets thread-like to wide
Inflorescence: umbels compound, peduncled; bracts generally 0; bractlets generally present, 0 to conspicuous; rays, pedicels spreading to erect, often webbed at base
Flower: calyx lobes generally 0; petals wide, yellow, white, or purple, tips narrowed; projection atop ovary 0
Fruit linear to obovate, very compressed front-to-back; marginal ribs widely to narrowly thin or thick-winged, others thread-like; oil tubes per rib-interval 1–several; fruit axis divided to base
Seed: face flat to concave
Species in genus: ± 75 species: c&s North America
Etymology: (Greek: bordered, from prominent marginal fruit wing)
Reference: [Schlessman 1984 Syst Bot Monogr 4:1–55]
Fr wing width expressed as width of 1 wing, not both together.
| Native |
Plant 1.5–6 dm; taproot massive; herbage glabrous, green
Stem ± 0; leaves clustered at base
Leaf: petiole 5–15 cm; blade 7–15 cm, oblong to ovate, ternate-pinnate or 2-pinnate, leaflets 1–2 cm, ovate, pinnately sharply lobed; cauline leaves 0 or like basal
Inflorescence: peduncle 1–5 dm; bractlets 5–8, 3–8 mm, lanceolate, acuminate, ± fused basally, reflexed; rays 10–16, 2.5–5 cm, spreading-ascending, webbed; pedicels 5–10 mm, webbed
Flower: corolla yellow; calyx lobes < 1 mm, evident
Fruit 6–12 mm, oblong-ovate, glabrous; wings < body in width; oil tubes per rib-interval 3
Ecology: UNCOMMON. Rocky slopes near streams, sagebrush, pinyon/juniper woodland
Elevation: 1200–2200 m.
Bioregional distribution: East of Sierra Nevada (Big Pine, Bishop creeks, Inyo Co.)
Flowering time: Apr–May
Vegetatively like Tauschia parishii.