Dudleya attenuata |
Dudleya abramsii |
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Orcutt's dudleya, tapertip liveforever |
Abrams' dudleya, Abrams' dudleya or liveforever, Abrams' liveforever |
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Caudices | simple or apically branching and cespitose, 0.5–8 × 1–3 cm, axillary branches absent. |
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Leaves | rosettes 1–100+, in clumps or not, 10–20(–30)-leaved, 2–8(–15) cm diam.; blade green, mostly linear or elliptic or oblong to oblong-lanceolate or tapering from base, 1–6(–11) × 0.2–1.2(–2) cm, 2–4 mm thick, base 0.5–1.5(–2) cm wide, apex acute to subacuminate, often apiculate, surfaces not farinose, glaucous (at least when young). |
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Inflorescences | cyme 1–4-branched, narrowly obpyramidal; branches not twisted (flowers on topside), simple or 1–3 times bifurcate; cincinni 2–3, 2–10(–18)-flowered, scarcely circinate, 3–15 cm; floral shoots 2–25 × 0.1–0.4(–0.6) cm; leaves 5–20, ascending, triangular-lanceolate, 4–40 × 2–11 mm, apex acute. |
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Pedicels | erect, not bent in fruit, 1–5(–17) mm. |
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Flowers | calyx 3–7 × 2–7 mm; petals connate 1–3(–4.5) mm, mostly pale yellow, straw yellow, or almost white, rarely bright yellow, commonly red-lineolate especially on keel, 5–16(–18) × 1.5–4.5 mm, (margins often somewhat erose), apex acute, with tips mostly erect; pistils connivent, erect. |
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California | ||||||||||||||||||||||||||
Unripe | follicles erect. |
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2n | = 34. |
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Dudleya attenuata |
Dudleya abramsii |
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Distribution |
CA; nw Mexico
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CA; nw Mexico
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Discussion | Subspecies 2 (1 in the flora). Subspecies australis Moran occurs in Baja California. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 7 (7 in the flora). Dudleya abramsii, a widespread diploid, is largely montane, growing mostly on granite or limestone, but its northwestern subspp. bettinae, murina, and setchellii are local at lower elevations, on serpentine. It forms small clumps, 2–11 cm in diameter. From the widespread diploid D. cymosa, generally a larger plant, it is nearly distinct in its mostly cespitose, narrow-leaved rosettes and simple cyme branches, and distinctively, the antisepalous stamens are adnate higher on the corolla tube than the epipetalous and are often 1–2 mm longer. The petals commonly much exceed the stamens and pistils, and the pistils are attenuate. Both species are variable, and subsp. costatifolia is somewhat intermediate. Five of the six subspecies are very similar, with only small differences, and only subsp. costatifolia is more distinctive. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 8, p. 176. | FNA vol. 8, p. 183. | ||||||||||||||||||||||||
Parent taxa | Crassulaceae > Dudleya > subg. Stylophyllum | Crassulaceae > Dudleya > subg. Dudleya | ||||||||||||||||||||||||
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Synonyms | Cotyledon attenuata, Stylophyllum attenuatum | |||||||||||||||||||||||||
Name authority | (S. Watson) Moran: Desert Pl. Life 14: 191. (1943) | Rose: in N. L. Britton and J. N. Rose, New N. Amer. Crassul., 14. 1903 (as abramsi) , | ||||||||||||||||||||||||
Web links |