Oxalis drummondii

A. Gray

Smithsonian Contr. Knowl. 5(6): 25. 1853.

Common names: Drummond's wood-sorrel
Illustrated
Basionym: Oxalis vespertilionis Torrey & A. Gray Fl. N. Amer. 1: 679. 1840
Synonyms: O. amplifolia (Trelease) R. Knuth
Treatment appears in FNA Volume 12. Treatment on page 149. Mentioned on page 136, 151.

Herbs perennial, acaulous, rhizomes and stolons absent, bulb solitary; bulb scales 3-nerved, margins villous-ciliate on distal 1/3–1/2. Leaves basal; petiole 5–16 cm; leaflets 3, green, sometimes with red splotches in irregular medial band adaxially, obtriangular to obcordate, (6–) 14–34 mm, lobed 1/4–4/5 length, lobes apically convex to nearly truncate, surfaces glabrous, oxalate deposits absent. Inflorescences umbelliform cymes, 3–10-flowered; scapes (7–) 11–23 cm, glabrous. Flowers distylous or rarely homostylous; sepal apices with 2 (–6) orange, linear, thickened, apically confluent tubercles; petals white to pale green proximally with green veins, pink to violet or purple-violet distally, (8–) 15–23 mm. Capsules cylindric, 4–12 mm, hairy. 2n = 14.


Phenology: Flowering Mar–Nov.
Habitat: Sandy-gravelly soils, limestone soils, disturbed areas, prairies, limestone hills, open woodlands, chaparral.
Elevation: 20–300 m.

Distribution

V12 617-distribution-map.jpg

Tex., Mexico (Coahuila), Mexico (Nuevo León), Mexico (San Luis Potosí), Mexico (Tamaulipas)

Discussion

Oxalis drummondii is found in the flora area in central and southern Texas. Reports of this species from Arizona, New Mexico, and trans-Pecos Texas are based on misidentifications of O. latifolia and O. metcalfei.

Selected References

None.

Lower Taxa

None.

"alternating" is not a number."/4" is not declared as a valid unit of measurement for this property.

... more about "Oxalis drummondii"
5 cm50 mm <br />0.05 m <br /> (?) +
Guy L. Nesom +
A. Gray +
Oxalis vespertilionis +
subpalmate +  and pinnate +
cylindric +
0.4 cm4 mm <br />0.004 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
taprooted +  and fibrous-rooted +
Drummond's wood-sorrel +
umbelliform +
Tex. +, Mexico (Coahuila) +, Mexico (Nuevo León) +, Mexico (San Luis Potosí) +  and Mexico (Tamaulipas) +
20–300 m. +
homostylous +  and distylous +
Sandy-gravelly soils, limestone soils, disturbed areas, prairies, limestone hills, open woodlands, chaparral. +
axillary +  and terminal +
whorled +  and alternate +
0.6 cm6 mm <br />0.006 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
red splotches;green +
lobed +, obtriangular +  and obcordate +
1.4 cm14 mm <br />0.014 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
apically convex +  and nearly truncate +
orange +  and black +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
pink +  and violet or purple-violet +
connate +  and distinct +
1.5 cm15 mm <br />0.015 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
5 cm50 mm <br />0.05 m <br /> (16 cm160 mm <br />0.16 m <br />) +
Flowering Mar–Nov. +
Smithsonian Contr. Knowl. +
7 cm70 mm <br />0.07 m <br /> (11 cm110 mm <br />0.11 m <br />) +
11 cm110 mm <br />0.11 m <br /> (23 cm230 mm <br />0.23 m <br />) +
connate +  and distinct +
Illustrated +
free +  and connate +
creeping +  and prostrate +
erect to decumbent +
distinct +
O. amplifolia +
Oxalis drummondii +
species +