Damasonium californicum

Torrey in G. Bentham

in G. Bentham,Plantas Hartwegianas imprimis Mexicanas. 341. 1857.

IllustratedEndemic
Synonyms: Machaerocarpus californicus (Torrey) Small
Treatment appears in FNA Volume 22.

Herbs, to 35 cm. Leaves erect; petiole 3–15 cm; blade absent or narrowly lanceolate to ovate, 3–9 × 0.5–3 cm, margins entire. Inflorescences racemes, rarely panicles; scapes erect or ascending; bracts broadly ovatelanceolate, thin, scarious. Flowers 12–22 mm wide; sepals persistent, green, oblong or ovate, somewhat hooded, 4–5 mm; petals white with yellow patch near base, rarely pink, broadly cuneate, rhombic, 6–10 mm, erose distally; stamens 2–3 mm, 2 in front of each petal; pistils 6–10 in single ring on receptacle; ovules 1; styles erect in anthesis, soon spreading radially, elongate, stout. Fruits horned by enlargement of style, ribbed on angles, with prominent angular shoulder and depressed flat faces, 0.5 × 3–5.5 mm; beak 3–6 mm.


Phenology: Flowering late summer.
Habitat: Vernal pools, margins of intermittent streams, or on mud
Elevation: 100–1700 m

Distribution

V22 98-distribution-map.jpg

Calif., Idaho, Nev., Oreg.

Discussion

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

... more about "Damasonium californicum"
Acuminate (?) +  and Acute (?) +
Robert R. Haynes +  and C. Barre Hellquist +
Torrey in G. Bentham +
rounded;attenuate +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
3 cm30 mm <br />0.03 m <br /> (9 cm90 mm <br />0.09 m <br />) +
narrow-lanceolate +  and ovate +
0.5cm +  and 3cm +
ovatelanceolate +
Calif. +, Idaho +, Nev. +  and Oreg. +
100–1700 m +
u--shaped +
depressed +
hypogynous +
12mm;22mm +
0.3 cm3 mm <br />0.003 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
Vernal pools, margins of intermittent streams, or on mud +
decumbent +  and floating +
petiolate +  and sessile +
decumbent +  and floating +
ascending +  and spreading +
deciduous +
Rhombic (?) +  and Cuneate (?) +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
triangular +
3 cm30 mm <br />0.03 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Flowering late summer. +
in G. Bentham,Plantas Hartwegianas imprimis Mexicanas. +
decumbent +  and floating +
not septate +
ascending +  and erect +
persistent +
ovate +  and oblong +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Illustrated +  and Endemic +
spreading +  and erect +
elongate +
Machaerocarpus californicus +
Damasonium californicum +
Damasonium +
species +
bracteolate +  and branching +