Micranthes nidifica (Greene) Small

Micranthes nidifica (Greene) Small
Saxifraga nidifica Greene, Erythea 1 : 222. 1893.
Leaves erect or ascending, 1-4.5 cm. long, the blades ovate to oblong-ovate, entire, glabrous, bright-green above, pale-green or purplishtinged beneath, abruptly narrowed at the base, the petiole-like bases shorter than the blades or fully as long, glabrous ; scapes relatively slender, erect, solitary, 16-28 cm. tall, pubescent with short glandular hairs and also with arachnoid hairs ; cymes permanently contracted, the lower ones peduncled, the peduncles very slender, several times exceeding the subtending bracts ; sepals broadly ovate, not ciliate ; petals oval to oval-orbicular, about 1.4 mm. long, slightly notched at the apex, without claw-like bases, shorter than the sepals ; filaments lanceolate.
Type locality : Above Donner I,ake, California. Distribution : California.

Micranthes columbiana (Piper) Small
Saxifraga columbiana Piper, Bull. Torrey Club 27 : 393. 1900.
Leaves erect or ascending, 2-10 cm. long, the blades oblong to elliptic, varying to ovate, shallowly undulate or denticulate, glabrous or nearly so on both sides, gradually or abruptly narrowed into petiole-like bases which are usually shorter than the blades ; scapes erect, relatively slender, 1-3.5 dm. tall, rather copiously glandular-pubescent throughout; cymules permanently contracted, the lower ones terminating slender peduncles; sepals ovate to oblong; petals oblong to cuneate, 1.4-2 mm. long, shorter than the sepals;
filaments subulate.
Type locality: Pullman, Washington. Distribution : Washington, Idaho and Oregon.

Micranthes montana Small, sp. nov
Leaves spreading, 2-3.5 cm. long, the blades ovate to oblong, entire or crenate-undulate, glabrous or nearly so, narrowed into rather long petiole-like bases ; scapes erect, usually solitary, 8-21 cm. tall, more densely glandular-pubescent above than below; cymules permanently compact, terminating the rather long spreading or ascendingspreading inflorescence-branches; sepals ovate, about 1.5 mm. long, eciliate; petals white, ovate to elliptic-ovate, 1.8-2.1 mm. long, clawless; filaments subulate; follicles 1-1.5 mm. high, purplish, the bodies depressed, the tips somewhat spreading.
Type collected at Pyramid Peak, California, in the summer of 1903, by Mrs. F. M. Meigs. Distribution : California.

Micranthes nidifica, the peak saxifrage, is a species of plant in the saxifrage family. It is native to the northwestern United States, where it grows in moist habitat, often in mountainous areas. It is a perennial herb growing from a caudex and system of rhizomes and producing a basal rosette of leaves. Each leaf is up to 10 centimeters long with a smooth-edged or minutely toothed blade on a thin petiole. The inflorescence arises on a peduncle up to half a meter tall and bears clusters of flowers with white petals.

Micranthes nidifica là một loài thực vật có hoa trong họ Saxifragaceae. Loài này được (Greene) Small miêu tả khoa học đầu tiên năm 1905.