Biology:Phacelia hastata

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Short description: Species of plant

Phacelia hastata
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Boraginales
Family: Boraginaceae
Genus: Phacelia
Species:
P. hastata
Binomial name
Phacelia hastata
Douglas ex Lehm.
Synonyms

Phacelia alpina
Phacelia frigida
Phacelia leucophylla

Phacelia hastata is a species of flowering plant in the family Hydrophyllaceae.[1][2] Its common names include silverleaf scorpionweed,[3] silverleaf phacelia,[4] and white-leaf phacelia.[5] It is native to western North America from British Columbia and Alberta south to California and east to Nebraska.[3] It can be found in many types of habitat, including scrub, woodland, and forest, up to an elevation of 13,000 feet.[6] It prefers sandy to rocky soil.[7]

Description

Phacelia hastata is a variable perennial herb with a stem 5 to 92 centimeters (2 to 36 in) long.[8][7] It is coated in a fine, silvery pubescence.[5] The deeply veined, gray-green leaves are lance-shaped to oval, and smooth-edged, lobed, or divided into leaflets.[8] Most of the leaves are in a tuft around the base of the plant.[5] The flowers are arranged in cymes, blooming in early summer.[7] They have an urn- or bell-shaped white or lavender fused corolla about 4 to 7 millimeters long. The stamens protrude.[7] The fruit is a hairy capsule a few millimeters in length.[8]

There are up to four accepted varieties:[4][9]

  • P. hastata var. charlestonensis – Charleston phacelia, Spring Mountains phacelia; endemic to Nevada[10]
  • P. hastata var. compacta – compact phacelia, timberline phacelia; a matlike form occurring at elevation[11]
  • P. hastata var. dasyphylla – spearshaped phacelia; limited to California and Oregon[12]
  • P. hastata var. hastata – silverleaf phacelia; rangewide[13]
  • Flower
    Flower
  • scorpioid flowerheads
    scorpioid flowerheads
  • var. charlestonensis
    var. charlestonensis
  • var. compacta
    var. compacta
  • var compact large plant
    var compact large plant

References

  1. ↑ "Phacelia Juss..". http://www.worldfloraonline.org/taxon/wfo-4000029021. 
  2. ↑ "Phacelia hastata Douglas ex Lehm.". Species 2000. n.d.. https://www.catalogueoflife.org/data/taxon/6V7L5. 
  3. ↑ 3.0 3.1 NatureServe (2023). "Phacelia hastata". Arlington, Virginia. https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.139121/Phacelia_hastata. 
  4. ↑ 4.0 4.1 Phacelia hastata. USDA PLANTS.
  5. ↑ 5.0 5.1 5.2 Phacelia hastata. Burke Museum. University of Washington.
  6. ↑ Phacelia hastata. Calflora.
  7. ↑ 7.0 7.1 7.2 7.3 Taylor, Ronald J. (1994) (in en). Sagebrush Country: A Wildflower Sanctuary (rev. ed.). Missoula, MT: Mountain Press Pub. Co. pp. 170. ISBN 0-87842-280-3. OCLC 25708726. 
  8. ↑ 8.0 8.1 8.2 Phacelia hastata. The Jepson Manual.
  9. ↑ Phacelia hastata. Integrated Taxonomic Information System (ITIS).
  10. ↑ Phacelia hastata var. charlestonensis. Nevada Natural Heritage Program. State of Nevada.
  11. ↑ var. compacta. The Jepson Manual.
  12. ↑ var. dasyphylla. NatureServe. 2012.
  13. ↑ var. hastata. The Jepson Manual.

Wikidata ☰ Q7179896 entry



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