Oxalis albicans

Kunth in A. von Humboldt et al.

Nov. Gen. Sp. 5(fol.): 189; 5(qto.): 244. 1822.

Common names: Western yellow wood-sorrel
Synonyms: Oxalis californica var. subglabra Wiegand O. corniculata subsp. albicans (Kunth) Lourteig O. corniculata var. wrightii (A. Gray) B. L. Turner O. pilosa var. wrightii (A. Gray) Wiegand O. wrightii A. Gray Xanthoxalis albicans (Kunth) Small X. wrightii (A. Gray) Abrams
Treatment appears in FNA Volume 12. Treatment on page 142. Mentioned on page 137, 143.

Herbs perennial, caulescent, rhizomes and stolons absent, bulbs absent. Aerial stems usually 2–8 from base, usually decumbent to prostrate, less commonly ascending, sporadically rooting at nodes, 10–40 cm, becoming woody proximally, puberulent to hirtellous-puberulent, hairs usually antrorsely curved or crisped, sometimes ± straight, nonseptate, longer hairs 0.2–0.3 (–0.8) mm. Leaves basal and cauline; stipules rudimentary or oblong, margins narrowly flanged, apical auricles absent; petiole (1–) 3–7 (–10) cm, hairs nonseptate; leaflets 3, glaucous and gray-green to yellowish green, obcordate, 5–10 (–15) mm, lobed 1/5–1/3 length, surfaces glabrous to loosely strigose, oxalate deposits absent. Inflorescences umbelliform cymes, 1–2 (–3) -flowered; peduncles 1.5–5 cm. Flowers semihomostylous, within level of leaves; sepal apices without tubercles, surfaces strigose to hirsute-strigose; petals yellow, rarely with red lines proximally, 6–10 (–12) mm. Capsules angular-cylindric, abruptly tapering to apex, 14–20 mm, strigose-hirsute. Seeds brown to blackish brown, transverse ridges rarely with whitish lines or spots.


Phenology: Flowering Apr–Aug(–Oct).
Habitat: Desert scrub, grasslands, mesquite-acacia, pinyon-juniper, oak-pine-juniper, oak-buckthorn, riparian woodlands (sycamore-hackberry-walnut-ash-willow), stream banks, meadows, washes, hillsides, ravines, canyons, disturbed sites.
Elevation: (600–)700–1900(–2100) m.

Distribution

V12 1041-distribution-map.jpg

Ariz., N.Mex., Tex., Mexico, Central America (Guatemala)

Discussion

Selected References

None.

Lower Taxa

None.

"alternating" is not a number."/5" is not declared as a valid unit of measurement for this property.

... more about "Oxalis albicans"
5 cm50 mm <br />0.05 m <br /> (?) +
Guy L. Nesom +
Kunth in A. von Humboldt et al. +
subpalmate +  and pinnate +
strigose-hirsute +
tapering +  and angular-cylindric +
1.4 cm14 mm <br />0.014 m <br /> (2 cm20 mm <br />0.02 m <br />) +
taprooted +  and fibrous-rooted +
Western yellow wood-sorrel +
umbelliform +
Ariz. +, N.Mex. +, Tex. +, Mexico +  and Central America (Guatemala) +
(600–)700–1900(–2100) m. +
homostylous +  and distylous +
Desert scrub, grasslands, mesquite-acacia, pinyon-juniper, oak-pine-juniper, oak-buckthorn, riparian woodlands (sycamore-hackberry-walnut-ash-willow), stream banks, meadows, washes, hillsides, ravines, canyons, disturbed sites. +
straight +  and curved +
crisped +
axillary +  and terminal +
whorled +  and alternate +
cauline +  and basal +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
gray-green;yellowish green +
lobed +  and obcordate +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
whitish +  and red +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
orange +  and black +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
connate +  and distinct +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
7 cm70 mm <br />0.07 m <br /> (10 cm100 mm <br />0.1 m <br />) +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Flowering Apr–Aug(–Oct). +
Nov. Gen. Sp. +
connate +  and distinct +
free +  and connate +
decumbent to prostrate +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
distinct +
strigose;hirsute-strigose +
Oxalis californica var. subglabra +, O. corniculata subsp. albicans +, O. corniculata var. wrightii +, O. pilosa var. wrightii +, O. wrightii +, Xanthoxalis albicans +  and X. wrightii +
Oxalis albicans +
species +