Crassula drummondii

(Torrey & A. Gray) Fedde

Just’s Bot. Jahresber. 31(1): 829. 1904,.

Basionym: Tillaea drummondii Torrey & A. Gray Fl. N. Amer. 1: 558. 1840
Treatment appears in FNA Volume 8. Treatment on page 154. Mentioned on page 151, 152.

Plants terrestrial or subaquatic, annual. Stems decumbent or erect, greenish red in age, diffusely branched, to 10 cm. Leaf blades narrow-lanceolate, 1.5–3 mm, apex obtuse. Inflorescences lax; flowers 1 per node. Pedicels 0.5–3 mm. Flowers 4-merous; sepals triangular-ovate, 0.4–0.6 mm, apex obtuse; petals ovate, 1.3–1.5 mm. Follicles ascending, 9–15-seeded, oblong; old follicles spreading, flat. Seeds oblong to ellipsoid, 0.2–0.4(–0.5) × 0.1–0.3 mm, prickly-papillate, dull, smooth.


Phenology: Flowering spring.
Habitat: Terrestrial or subaquatic, margins of ponds and streams
Elevation: 0-50 m

Distribution

V8 306-distribution-map.gif

Colo., Kans., S.C., Tex., South America.

Discussion

M. Bywater and G. E. Wickens (1984) cited Crassula drummondii also from Arizona; I have referred their specimen (Spring Valley, near Sitgreave Mountain, Lemmon in 1884) to C. viridis (R. V. Moran 1992b).

Selected References

None.

Lower Taxa

None.