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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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

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. pulverulenta (Nutt.) Britton & Rose

Plant covered with dense, mealy powder to chalky wax
Stem: caudex simple
Leaf oblong to oblong-obovate
Inflorescence: 1° branches 3–10, simple or forked 1 X ; terminal branches twisted at base
Flower: sepals deltate-ovate; petals acute to obtuse
Chromosomes: n=17
Ecology: Rocky places
Elevation: < 1500 m.
Bioregional distribution: c&s Central Coast, Outer South Coast Ranges, South Coast, Transverse Ranges, Peninsular Ranges, Desert Mountains
Distribution outside California: s Nevada, w Arizona, nw Mexico

Native

subsp. arizonica (Rose) Moran


Stem: caudex 1–4 cm wide
Leaves 15–25 per rosette, (3)5–15(17) cm, 1–5 cm wide, 2–4 mm thick, oblong to oblong-obovate; base 1–3.5 cm wide; tip generally long-acuminate
Inflorescence: peduncle 1.5–6 dm, 2–6 mm wide; terminal branches ascending, 3–6, 4–27 cm, 3–6-flowered; pedicel 5–15(20) mm, generally erect to ascending
Flower: petals 9–15 mm, fused 4–8 mm, red or yellow, lobes 1.5–2 mm wide
Ecology: Rocky slopes
Elevation: 600–1500 m.
Bioregional distribution: Desert Mountains
Distribution outside California: s Nevada, w Arizona, nw Mexico
Flowering time: May–Jul
Synonyms: D. a. Rose
Horticultural information: DRN: 2, 3, 7, 10, 11, 14, 18, 19, 20, 21, 22, 23 &DRY: 15, 16, 17, 24.

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