Micranthes apetala

(Piper) Small in N. L. Britton et al.

in N. L. Britton et al., N. Amer. Fl. 22: 135. 1905 ,.

Common names: Tiny swamp saxifrage
Basionym: Saxifraga apetala Piper Bull. Torrey Bot. Club 27: 393. 1900
Synonyms: Saxifraga integrifolia var. apetala (Piper) M. E. Jones
Treatment appears in FNA Volume 8. Treatment on page 68. Mentioned on page 49, 51.

Plants solitary or in clusters, with bulbils on caudices, or short-rhizomatous. Leaves basal; petiole flattened, 0.5–3 cm; blade ± ovate, 2–5 cm, ± fleshy, base attenuate, margins entire or crenulate, eciliate, surfaces hairy. Inflorescences 10–25-flowered, congested, glomerate thyrses, 4–15 cm, pink to purple-tipped stipitate-glandular (hairs uniseriate). Flowers: sepals erect to ascending, ovate; petals absent, sometimes 1–5, white to greenish white, not spotted, linear to oblong, clawed, 1–2 mm, much shorter than sepals; filaments linear, flattened; pistils connate to 1/2 their lengths; ovary 1/2+ inferior. Capsules reddish or purplish, folliclelike. 2n = 38.


Phenology: Flowering early spring–summer.
Habitat: Vernally moist meadows, wet depressions on mountain slopes
Elevation: 600-2800 m

Distribution

V8 132-distribution-map.gif

Idaho, Mont., Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.

"full" is not a number.

... more about "Micranthes apetala"
epigynous +, perigynous +  and hypogynous +
palmate +  and pinnate +
acute +  and obtuse or rounded +
Luc Brouillet +  and Patrick E. Elvander† +
(Piper) Small in N. L. Britton et al. +
attenuate +
Saxifraga apetala +
dentate +, serrate +  and entire +
glandular-ciliate +  and ciliate +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
purplish;reddish +
3-carpellate +  and 2-carpellate +
connate +  and distinct +
Tiny swamp saxifrage +
ebracteate +, bracteate +  and 2-300(-1000+)-flowered +
Idaho +, Mont. +, Oreg. +  and Wash. +
600-2800 m +
flattened +
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 +
Vernally moist meadows, wet depressions on mountain slopes +
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 />) +
opposite +  and alternate +
crenulate +  and entire +
crassinucellate +, unitegmic +  and bitegmic +
epigynous +, perigynous +  and hypogynous +
purple-margined +
not spotted +, white +  and greenish white +
reddish purple +  and purple +
distinct +
1 +  and 5 +
clawed +, linear +  and oblong +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
peltate +  and jointed +
flattened +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering early spring–summer. +
2(-3)-carpellate +
0 +  and 1/2 +
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 +
erect +  and ascending +
unbranched +  and branched +
persistent +
horizontal +  and erect +
2 +  and 3 +
connate +  and distinct +
Saxifraga integrifolia var. apetala +
Micranthes apetala +
Micranthes +
species +
purple-tipped +  and glomerate +
stipitate-glandular +
4 cm40 mm <br />0.04 m <br /> (15 cm150 mm <br />0.15 m <br />) +
dentate +, serrate +  and entire +
annual +, biennial +  and perennial +