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Sagina nivalis
(Lindbl.) Fr.
Family:
Caryophyllaceae
Images
not available
Flora of North America
Resources
Garrett E. Crow in Flora of North America (vol. 5)
Plants
perennial, cespitose, forming low cushions, glabrous.
Stems
ascending or spreading, radiating from axils of basal rosette leaves, sometimes purple tinged, many-branched, slender.
Leaves:
axillary fascicles absent; basal in primary rosettes, secondary rosettes absent, blade subulate to linear, to 20(-30) mm, fleshy, apex apiculate, glabrous; cauline connate basally into shallow cup, blade often purplish, subulate to linear, 4-16 mm, becoming shorter toward stem apex, scarious, apex apiculate, glabrous.
Pedicels
filiform, glabrous.
Flowers
mostly terminal, 4-merous or 4- and 5-merous; calyx base glabrous; sepals frequently purplish, nearly orbiculate to elliptic, 1.5-2 mm, hyaline margins nearly always purple, sometimes only at apex, apex rounded, glabrous, remaining appressed following capsule dehiscence; petals narrowly elliptic, 1.5-2 mm, equaling to slightly shorter than sepals; stamens 8 or 10.
Capsules
2-3 mm, usually shorter than sepals, dehiscing to base.
Seeds
brown, obliquely triangular with abaxial groove, 0.5 mm, lateral surfaces frequently with elongate ridges, abaxial surface appearing smooth to pebbled.
2
n
= 56, 88. Flowering mid-late summer. Sandy or gravelly beaches, coastal rocks, alluvial plains, fresh glacial moraines, low, swampy tundra, alpine areas; 0-2800 m; Greenland; Alta., B.C., Nfld. and Labr. (Labr.), N.W.T., Nunavut, Que., Yukon; Alaska, Mont.; arctic Eurasia.
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