Phacelia hastata is a species of flowering plant in the family Hydrophyllaceae. Its common names include silverleaf scorpionweed, silverleaf phacelia,Phacelia hastata. USDA PLANTS. and white-leaf phacelia.Phacelia hastata. Burke Museum. University of Washington. It is native to western North America from British Columbia and Alberta south to California and east to Nebraska. It can be found in many types of habitat, including scrub, woodland, and forest, up to an elevation of 13,000 feet.Phacelia hastata. Calflora. It prefers sandy to rocky soil.
Description Phacelia hastata is a variable perennial herb with a stem long.Phacelia hastata. The Jepson Manual. It is coated in a fine, silvery pubescence. The deeply veined, gray-green leaves are lance-shaped to oval, and smooth-edged, lobed, or divided into leaflets. Most of the leaves are in a tuft around the base of the plant. The flowers are arranged in cymes, blooming in early summer. They have an urn- or bell-shaped white or lavender fused corolla about 4 to 7 millimeters long. The stamens protrude. The fruit is a hairy capsule a few millimeters in length.
There are up to four accepted varieties:Phacelia hastata. Integrated Taxonomic Information System (ITIS). P. hastata var. charlestonensis – Charleston phacelia, Spring Mountains phacelia; endemic to NevadaPhacelia hastata var. charlestonensis. Nevada Natural Heritage Program. State of Nevada. P. hastata var. compacta – compact phacelia, timberline phacelia; a matlike form occurring at elevationvar. compacta. The Jepson Manual. P. hastata var. dasyphylla – spearshaped phacelia; limited to California and Oregonvar. dasyphylla. NatureServe. 2012. P. hastata var. hastata – silverleaf phacelia; rangewidevar. hastata. The Jepson Manual.
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