Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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CRASSULACEAE

STONECROP FAMILY

Annual to subshrubs, fleshy
Leaves generally simple, generally basal and cauline, alternate or opposite, generally reduced upward
Inflorescence: generally cyme, generally bracted
Flower: sepals generally 3–5, generally ± free; petals generally 3–5, ± free or fused; stamens = to >> sepals, free or epipetalous; pistils generally 3–5, simple (sometimes fused at base), ovary 1-chambered, placenta 1, parietal, ovules 1–many, style 1
Fruit: follicles generally 3–5
Seeds 1–many, small
Genera in family: ± 30 genera, ± 1500 species: ± worldwide, especially dry temp; many cultivated for ornamental. Family description and generic key by Melinda F. Denton and Reid Moran.

DUDLEYA

Jim A. Bartel

Perennial, fleshy, glabrous
Stem generally caudex or corm-like, generally vertical, branched or not, generally covered with dried leaves or leaf bases
Leaves in basal rosettes, evergreen vernal and ephemeral
Inflorescence: cyme, axillary, 1-sided; bracts leaf-like, alternate
Flower: sepals 5, fused below; petals 5, fused at base, erect to spreading above; stamens 10, epipetalous; pistils 5, ± fused below
Fruit: follicles 5, erect to spreading, many-seeded
Seed < 1 mm, narrowly ovoid, brown, striate
Species in genus: ± 45 species: sw North America
Etymology: (W.R. Dudley, western US botanist, 1849–1911)
Reference: [Moran in Jacobsen 1960 Handb Succ Plant:344–359]
Unopened follicles generally most reliable for posture (erect, spreading, etc.).

Native

D. abramsii Rose


Stem: caudex simple to generally branched, cespitose
Leaf 1.5–11 cm, 5–20 mm wide, oblong-lanceolate or tapered base to tip, rarely elliptic to oblanceolate, generally glaucous, upper surface generally ± flat; rosette 2–6 cm wide
Inflorescence: 1° branches 0 or generally 2–3, generally simple, ascending; terminal branches 3–15 cm, 2–15-flowered; lower bracts 4–40 mm; pedicel 0.5–5(11) mm
Flower: sepals 2–5 mm, deltate; petals 8–13 mm, 1.5–3.5 mm wide, fused 1–4.5 mm, elliptic, acute, pale yellow, keel generally with fine, purple to red lines, margin often jagged
Chromosomes: n=17
Ecology: Rocky outcrops
Elevation: 50–2600 m.
Bioregional distribution: s Outer South Coast Ranges, s Western Transverse Ranges, San Bernardino Mountains, Peninsular Ranges, sw edge Mojave Desert
Distribution outside California: n Baja California
Sspp. bettinae, murina, parva exude purple dye when crushed.

Native

subsp. parva (Rose & Davidson) Bartel

CONEJO DUDLEYA

Roots narrowed at irregular intervals
Stem: caudex 2–7 mm wide, often branched, often laterally
Leaf vernal, 1.5–4 cm, 3–6 mm wide, glaucous especially when young, oblanceolate
Inflorescence: peduncle 5–18 cm, 1–2 mm wide; lower bracts 5–15 mm
Flower: petals fused 1–2 mm, keel often red-flecked
Ecology: Clay grassland
Elevation: 60–450 m.
Bioregional distribution: s Western Transverse Ranges (w Santa Monica Mtns, Ventura Co.)
Synonyms: D. p. Rose & Davidson
Horticultural information: In cultivation.

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bioregional map for DUDLEYA%20abramsii%20subsp.%20parva 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 Dudleya abramsii subsp. parva
Retrieve dichotomous key for Dudleya
Overlay Consortium of California Herbaria specimen data by county on this map
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