Jepson Flora Project: Jepson Interchange    

 
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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.

APIACEAE

CARROT FAMILY

Lincoln Constance

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.

OREONANA

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

O. purpurascens Shevock & Constance

PURPLE MOUNTAIN-PARSLEY

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.
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for OREONANA%20purpurascens being generated
 
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Oreonana purpurascens
Retrieve dichotomous key for Oreonana
Overlay Consortium of California Herbaria specimen data by county on this map
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