Oxalis trilliifolia

Hooker

Fl. Bor.-Amer. 1: 118. 1831.

Common names: Trillium-leaf wood-sorrel
IllustratedEndemic
Synonyms: Hesperoxalis trilliifolia (Hooker) Small
Treatment appears in FNA Volume 12. Treatment on page 147. Mentioned on page 135.

Herbs perennial, acaulous, rhizomes present, fleshy-thickened, densely scaly, stolons absent, bulbs absent. Leaves basal, clustered at rhizome tips; petiole 15–30 cm; leaflets 3, green, broadly obcordate, 20–40 (–60) mm, lobed 1/6–1/4 length, lobes apically convex, surfaces sparsely villous, oxalate deposits absent. Inflorescences umbelliform cymes, 2–9 (–15) -flowered; scapes 15–25 cm, glabrous or sparsely villous. Flowers heterostylous; sepal apices without tubercles; petals white to pinkish, sometimes greenish proximally, without prominent veins, 8–14 mm. Capsules narrowly fusiform, 15–25 (–30) mm, glabrous.


Phenology: Flowering May–Sep.
Habitat: Redwood, spruce-fir, Douglas fir, hemlock, hemlock-cedar, hemlock-alder woodlands, stream margins, swamps.
Elevation: 20–1800 m.

Distribution

V12 941-distribution-map.jpg

Calif., Idaho, Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.

"alternating" is not a number."/6" is not declared as a valid unit of measurement for this property.

... more about "Oxalis trilliifolia"
5 cm50 mm <br />0.05 m <br /> (?) +
Guy L. Nesom +
Hooker +
subpalmate +  and pinnate +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
taprooted +  and fibrous-rooted +
Trillium-leaf wood-sorrel +
umbelliform +
Calif. +, Idaho +, Oreg. +  and Wash. +
20–1800 m. +
heterostylous +
Redwood, spruce-fir, Douglas fir, hemlock, hemlock-cedar, hemlock-alder woodlands, stream margins, swamps. +
2-9(-15)-flowered +
axillary +  and terminal +
whorled +  and alternate +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
lobed +  and obcordate +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
orange +  and black +
greenish +, white +  and pinkish +
connate +  and distinct +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Flowering May–Sep. +
Fl. Bor.-Amer. +
fleshy-thickened +
villous +  and glabrous +
15 cm150 mm <br />0.15 m <br /> (25 cm250 mm <br />0.25 m <br />) +
connate +  and distinct +
Illustrated +  and Endemic +
free +  and connate +
creeping +  and prostrate +
erect to decumbent +
distinct +
Hesperoxalis trilliifolia +
Oxalis trilliifolia +
species +