Dudleya virens

(Rose) Moran

Desert. Pl. Life 14: 191. 1943 ,

Common names: Green liveforever bright green dudleya
Conservation concern
Basionyms: Stylophyllum virens Rose in N. L. Britton and J. N. Rose, New N. Amer. Crassul., 34. 1903
Treatment appears in FNA Volume 8. Treatment on page 174. Mentioned on page 173.

Caudices to 10 dm × 1–6(–8) cm, clumps to 20 dm diam. Leaves without resinous odor; rosette 15–55-leaved, 5–25 cm diam.; blade whitish or light green, linear to triangular-lanceolate [-oblanceolate], laminar or semiterete, 5–25 × 0.6–3 cm, 2–8 mm thick, 2–5 times wider than thick, base 8–40 mm wide, surfaces sometimes farinose, not viscid, not oily. Inflorescences: cyme densely 2–5-branched and obpyramidal, or 15+-branched and cylindric, (branches scattered proximally); branches simple or 1–3 times bifurcate; cincinni 3–20-flowered, somewhat circinate, 1–10 cm; floral shoots (reddish), 1–7 dm × 2–15 mm; leaves 12–45, ascending, oblong, to 5 × 0.5–1.5 cm. Pedicels 1–3(–6) mm. Flowers: petals widespreading or slightly reflexed from middle, connate 1.5–2.5 mm, white or rosy, triangular-ovate or elliptic-oblong, 7–11 × 2–3.5 mm, apex acute, corolla 14–23 mm diam.; pistils connivent, suberect to ascending, 6–10 mm, (base tapering); styles 2–4 mm. Follicles ascending with adaxial margins 40–50º from vertical. 2n = 34, 68.

Discussion

Subspecies 4 (3 in the flora).

Subspecies extima Moran is endemic to Guadalupe Island, Baja California, Mexico.

Key

1 Rosette leaf blades 6-25 × 1-3 cm; floral shoots 2-7 dm × 5-15 mm; caudices 2-6(-8) cm wide. Dudleya virens subsp. insularis
1 Rosette leaf blades 5-15 × 0.6-1.5 cm; floral shoots 1-4.5 dm × 2-7 mm; caudices 1-3 cm wide > 2
2 Rosette leaf blades triangular-lanceolate to linear-lanceolate, 1-1.5 cm wide, green, sometimes farinose; cyme branches 1-3 times bifurcate; cincinni 3-5 cm, 5-12-flowered. Dudleya virens subsp. virens
2 Rosette leaf blades linear, 0.6-1 cm wide, appearing whitish, mostly farinose; cyme branches mostly simple or 1 times bifurcate; cincinni 2-10 cm, 3-20-flowered. Dudleya virens subsp. hassei