Micranthes rufidula

Small in N. L. Britton et al.

in N. L. Britton et al., N. Amer. Fl. 22: 140. 1905,.

Synonyms: Saxifraga aequidentata (Small) Rosendahl Saxifraga occidentalis subsp. rufidula (Small) Bacigalupi Saxifraga occidentalis var. rufidula (Small) C. L. Hitchcock Saxifraga rufidula
Treatment appears in FNA Volume 8. Treatment on page 62. Mentioned on page 54, 63, 70.

Plants solitary or in groups, with bulbils on caudices, or rhizomatous. Leaves basal; petiole flattened, 4–8 cm; blade ovate to elliptic, 1–4 cm, fleshy, base attenuate to ± truncate, margins serrate (15–30- toothed), eciliate, surfaces densely tangled, reddish brown-hairy abaxially, glabrous adaxially. Inflorescences 15+-flowered, open, flat-topped thyrses, 5–20 cm, purple-tipped stipitate-glandular; (bracts often tangled brown-hairy). Flowers: sepals spreading, ovate, (often tangled brown-hairy); petals white, not spotted, ovate to elliptic, clawed, 2–4 mm, longer than sepals; filaments linear, flattened to slightly club-shaped; pistils distinct almost to base; ovary superior, (to 1/3 adnate to hypanthium). Capsules greenish to reddish purple, folliclelike. 2n = 20, 38, 56, 58.


Phenology: Flowering late winter–summer.
Habitat: Wet to dry, rocky ledges
Elevation: 0-3000 m

Distribution

V8 115-distribution-map.gif

B.C., Calif., Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.

"full" is not a number.

... more about "Micranthes rufidula"
58 +, 56 +, 38 +  and 20 +
epigynous +, perigynous +  and hypogynous +
palmate +  and pinnate +
acute +  and obtuse or rounded +
Luc Brouillet +  and Patrick E. Elvander† +
Small in N. L. Britton et al. +
attenuate to more +
dentate +, serrate +  and entire +
glandular-ciliate +  and ciliate +
ovate +  and elliptic +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
greenish;reddish purple +
3-carpellate +  and 2-carpellate +
connate +  and distinct +
ebracteate +, bracteate +  and 2-300(-1000+)-flowered +
B.C. +, Calif. +, Oreg. +  and Wash. +
0-3000 m +
flattened +  and slightly club-shaped +
bracteate +  and 2-70+[-1000]-flowered +
unisexual +  and bisexual +
2 cm20 mm <br />0.02 m <br /> (125 cm1,250 mm <br />1.25 m <br />) +
2-3(-4)-beaked +  and folliclelike +
Wet to dry, rocky ledges +
multicellular +
glabrous +, stipitate-glandular +  and hairy +
purplish +  and green +
free +  and adnate +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
open +  and 15+-flowered +
opposite +  and alternate +
crassinucellate +, unitegmic +  and bitegmic +
epigynous +, perigynous +  and hypogynous +
purple-margined +
not spotted +  and white +
reddish purple +  and purple +
distinct +
clawed +, ovate +  and elliptic +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
peltate +  and jointed +
flattened +
4 cm40 mm <br />0.04 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Flowering late winter–summer. +
2(-3)-carpellate +
unequal +
in N. L. Britton et al., N. Amer. Fl. +
straight +
muricate +, cellular-rugulose +, tuberculate +, pitted +, papillate +  and wrinkled +
ovoid +, ellipsoid +  and oblong +
reddish +  and green +
distinct +
unbranched +  and branched +
persistent +
horizontal +  and erect +
2 +  and 3 +
connate +  and distinct +
reddish brown-hairy +
Saxifraga aequidentata +, Saxifraga occidentalis subsp. rufidula +, Saxifraga occidentalis var. rufidula +  and Saxifraga rufidula +
Micranthes rufidula +
Micranthes +
species +
purple-tipped +
stipitate-glandular +
flat-topped +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
dentate +, serrate +  and entire +
annual +, biennial +  and perennial +