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Hutchinsia is an annual with branched, erect stems that are 2-10 cm high. Alternate, narrowly lance-shaped leaves, 5-20 mm long with entire margins or a pair of basal lobes, are largest at the base of the plant. Foliage is glabrous. Numerous tiny, stalked flowers are borne at the top of the stems in a spreading, elongate inflorescence. Each flower has 4 white, separate petals that are ca. 1 mm l...

Dense-leaf Draba is a mat-forming perennial with leaf rosettes at the ends of numerous rootcrown branches, which are clothed with old leaf bases. The leafless stems are 3-15 mm high and arise from some of the rosettes. The fleshy, narrowly lance-shaped leaves are 2-12 mm long and have a prominent midvein and straight, unbranched hairs on the entire margins but are otherwise mostly glabrous. 3-15...