bio.wikisort.org - Plant

Search / Calendar

Mentzelia mollis is a species of flowering plant in the Loasaceae known by the common names soft blazingstar,[1] smooth blazingstar, and smooth stickleaf. It is native to the western United States, where it occurs in Idaho, Oregon, and Nevada.[2][3]

Mentzelia mollis
Conservation status

Imperiled  (NatureServe)
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Cornales
Family: Loasaceae
Genus: Mentzelia
Species:
M. mollis
Binomial name
Mentzelia mollis
M.Peck

Description


This annual herb grows 5 to 12 centimeters tall with a thick, branching, erect stem. The leaves are lance-shaped and mostly smooth-edged. It produces flowers with bright yellow flowers with petals about a centimeter long and with many stamens in the middle. Flowering occurs in May and June.[2] The flowers are visited by bumblebees.[3] The fruit is a four-sided capsule about 2.5 centimeters long.[2]

This plant grows on deposits of montmorillonite, a slick, powdery clay soil. It also grows on volcanic ash soils high in potassium. The substrate is also high in calcium and sodium. Summer soil temperatures are hot.[3] The soils are mostly barren of vegetation but may host other annuals such as Monolepis pusilla, Mentzelia albicaulis, Cleomella macbrideana, and Phacelia humilis.[4] Only 10 to 12 inches of annual precipitation falls in the area.[3]

This species is distributed in Malheur County, Oregon, Owyhee County, Idaho, and Humboldt County, Nevada.[5] Threats include habitat destruction from mining activity and off-road vehicle use.[2][5]


References


  1. USDA, NRCS (n.d.). "Mentzelia mollis". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 7 July 2015.
  2. Mentzelia mollis. The Nature Conservancy.
  3. Mentzelia mollis. Archived 2011-10-26 at the Wayback Machine Center for Plant Conservation.
  4. Mentzelia mollis. Archived 2010-05-27 at the Wayback Machine Nevada Natural Heritage Program.
  5. Mentzelia mollis. Oregon Department of Agriculture.



Текст в блоке "Читать" взят с сайта "Википедия" и доступен по лицензии Creative Commons Attribution-ShareAlike; в отдельных случаях могут действовать дополнительные условия.

Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.

2019-2025
WikiSort.org - проект по пересортировке и дополнению контента Википедии