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Rosaceae generally have five sepals, five petals, and many spirally arranged stamens. The bases of the sepals, petals, and stamens are fused together to form a characteristic cup-like structure called a hypanthium. They can be arranged in spikes, or heads. Solitary flowers are rare.
Potentilla argyrocoma is a small perennial herb producing a clump of fuzzy reddish naked stems that grow horizontal to the ground and a number of tail-like hairy leaves which grow erect and may curl or droop.
Potentilla sericoleuca is a small perennial herb forming a tuft on the ground. Each leaf is a flat to cylindrical strip of many hairy green leaflets, each individual leaflet 3 to 15 millimeters long and each whole leaf 10 to 20 centimeters long.
Rosaceae: Genus: Potentilla: Species: P. lindleyi. ... The center of the flower holds ten stamens and up to 60 small pistils. External links. Jepson Manual Treatment;
Rosaceae: Genus: Potentilla: Species: P. clevelandii. Binomial name; Potentilla clevelandii. ... The center of the flower contains ten stamens and up to 50 pistils.
Each flower has five calyx lobes, five broad, shallowly-notched petals, thirty stamens, many pistils and a separate gynoecium. The fruit is a receptacle containing several glossy, pale brown achenes. The plant may reproduce by seed or vegetatively by sprouting new shoots from its caudex. Sulphur cinquefoil flowers from June to August. [2] [3]
The flowers have between 100 and 200 stamens measuring about 3.5 mm (0.14 in) long, and between 400 and 600 carpels. [ 4 ] : 683 [ 5 ] [ 6 ] [ 7 ] The fruit is an ovoid or somewhat cylindrical aggregate fruit measuring about 13 mm (0.51 in) diameter and up to 18 mm (0.71 in) long, and is bright red at maturity.
Potentilla paniculata, also known as Ash Creek mousetail and Ash Creek ivesia, is a species of flowering plant in the rose family. [2] It is endemic to the Modoc Plateau of Lassen and Modoc Counties in the northeastern corner of California, where it is known only from the vicinity of Ash Valley.