| TREATMENT FROM THE JEPSON MANUAL (1993) |
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Jepson Interchange (more information) |
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©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, taprooted, cushion-forming, generally coarsely hairy or tomentose
Stem 0
Leaves: lowest bladeless sheaths; upper blades narrowly ovate to round, pinnately or ternately dissected, segments lanceolate or oblong
Inflorescence: umbels compound, head-like, spheric or hemispheric; peduncles spreading; bracts 0; involucel 1-sided, bractlets fused to nearly free; rays few–many, spreading to spreading-ascending; fertile pedicels very short, sterile > fruit
Flower bisexual, staminate, or sterile; calyx lobes conspicuous or not; petals spoon-shaped or oblanceolate, generally white or yellow, or becoming purple, early deciduous, tips narrowed; projection atop ovary 0
Fruit ovate to round, slightly compressed side-to-side or cylindric, hairy; ribs subequal, thread-like; oil tubes per rib-interval several; fruit axis divided to base
Seed: face deeply grooved
Species in genus: 3 species: high mtns of CA-FP
Etymology: (Greek: mountain dwarf)
Reference: [Shevock & Norris 1981 Fremontia 9:22–25]
| Native |
Plant 0.8–2.2 cm, grayish hairy
Leaf: bladeless sheaths 3–6 cm; petiole 4–7 cm; blade 5–10 cm, narrowly ovate, segments 1–3 mm, lanceolate or oblong
Inflorescence: umbels 2.5–4.5 cm diam, spheric, appearing well before leaf blades; peduncles 12–18 cm, spreading; bractlets fused; rays 20–35, 5–15 mm, outer scarious-winged, webbed; sterile pedicels 3–10 mm
Flower bisexual, staminate, or sterile; calyx lobes 1.5–3 mm, stellate-spreading, purple; corolla white; anthers purple
Fruit 4–5 mm wide, nearly glabrous to hairy
Chromosomes: 2n=22
Ecology: Ridge-tops, on generally metamorphic rocks, red fir or lodgepole pine
Elevation: 2500–2600 m.
Bioregional distribution: s High Sierra Nevada.