Micranthes stellaris

(Linnaeus) Galasso

Atti Soc. Ital. Sci. Nat. Mus. Civico Storia Nat. Milano 146: 231. 2005,.

Common names: Starry saxifrage saxifrage étoilée
Basionym: Saxifraga stellaris Linnaeus Sp. Pl. 1: 400. 1753
Treatment appears in FNA Volume 8. Treatment on page 57. Mentioned on page 49, 50, 53.

Plants tufted or mat-forming, with ± branched caudices or stolonlike rhizomes. Leaves basal; petiole ± absent; blade obovate to elliptic, 1–5 cm, ± fleshy, base cuneate, margins 1–3-toothed in distal 1/2, ciliate, surfaces hairy. Inflorescences 2–10-flowered, open, lax cymes, sometimes solitary flowers, (all or some flowers replaced with bulbils, bulbils sometimes absent), 5–20 cm, sparsely to moderately purple-tipped stipitate-glandular. Flowers: sepals reflexed, narrowly elliptic to lanceolate; petals white, each with 1–2 basal yellow spots, lanceolate, clawed, 3–8 mm (2 often slightly larger), longer than sepals; filaments linear, flattened; pistils connate 1/2+ their lengths; ovary superior, (to 1/3 adnate to hypanthium). Capsules green to purple, valvate. 2n = 28.


Phenology: Flowering summer.
Habitat: Mossy tundra near streams, rocky, gravelly seepage areas
Elevation: 0-500 m

Distribution

V8 99-distribution-map.gif

Greenland, Nfld. and Labr. (Labr.), Nunavut, Que., Europe

Discussion

Micranthes stellaris is amphi-Atlantic. In Nunavut, it is known only from Baffin Island.

Selected References

None.

Lower Taxa

None.

"full" is not a number.

... more about "Micranthes stellaris"
epigynous +, perigynous +  and hypogynous +
palmate +  and pinnate +
acute +  and obtuse or rounded +
Luc Brouillet +  and Patrick E. Elvander† +
(Linnaeus) Galasso +
cuneate +
Saxifraga stellaris +
dentate +, serrate +  and entire +
glandular-ciliate +  and ciliate +
obovate +  and elliptic +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
2(-3)-beaked +  and folliclelike +
green;purple +
3-carpellate +  and 2-carpellate +
connate +  and distinct +
Starry saxifrage +  and saxifrage étoilée +
ebracteate +, bracteate +  and 2-300(-1000+)-flowered +
Greenland +, Nfld. and Labr. (Labr.) +, Nunavut +, Que. +  and Europe +
0-500 m +
flattened +
purple-tipped +
stipitate-glandular +
unisexual +  and bisexual +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
2 cm20 mm <br />0.02 m <br /> (125 cm1,250 mm <br />1.25 m <br />) +
2-3(-4)-beaked +  and folliclelike +
Mossy tundra near streams, rocky, gravelly seepage areas +
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 2-10-flowered +
opposite +  and alternate +
1-3-toothed +
crassinucellate +, unitegmic +  and bitegmic +
epigynous +, perigynous +  and hypogynous +
purple-margined +
reddish purple +  and purple +
distinct +
clawed +  and lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
peltate +  and jointed +
Flowering summer. +
2(-3)-carpellate +
unequal +
Atti Soc. Ital. Sci. Nat. Mus. Civico Storia Nat. Milano +
straight +
muricate +, cellular-rugulose +, tuberculate +, pitted +, papillate +  and wrinkled +
ovoid +, ellipsoid +  and oblong +
reddish +  and green +
distinct +
narrowly elliptic +  and lanceolate +
unbranched +  and branched +
persistent +
horizontal +  and erect +
2 +  and 3 +
connate +  and distinct +
Micranthes stellaris +
Micranthes +
species +
dentate +, serrate +  and entire +
stoloniferous +  and rhizomatous +
annual +, biennial +  and perennial +
plant +  and mat-forming +