Heterotheca villosa explained

Heterotheca villosa, commonly known as the hairy goldenaster, is a species of flowering plant in the family Asteraceae found in central and western North America.

Description

Hairy golden aster can grow from NaN0NaN0 tall, but is more typically tall. Their leaves may be as long as, but are more often in length.^[1] Blooming from May to October, the flower head is about 2.5cm (01inches) wide, with yellow ray and disk florets. The seeds have white bristles at the tip.^[2] The species can be difficult to identify, as it has a number of close relatives and many varieties.

Varieties^{[3] [4]}

• Heterotheca villosa var. ballardii (Rydb.) Semple - northern Great Plains in US and Canada
• Heterotheca villosa var. depressa (Rydb.) Semple - Wyoming
• Heterotheca villosa var. foliosa (Nutt.) V.L.Harms - Rockies, Black Hills, northern Cascades, etc.
• Heterotheca villosa var. minor (Hook.) Semple - Rockies, Cascades, Sierra Nevada, etc.
• Heterotheca villosa var. nana (A.Gray) Semple - Rockies + other mountains from South Dakota to Arizona
• Heterotheca villosa var. pedunculata (Greene) V.L.Harms ex Semple - Arizona, New Mexico, Colorado, Utah
• Heterotheca villosa var. scabra (Eastw.) Semple - Mexico, southwestern USA
• Heterotheca villosa var. sierrablancensis Semple - New Mexico
• Heterotheca villosa var. villosa - northern Great Plains, Columbia Plateau, etc.

Distribution and habitat

The species is widespread across central and western North America, from Ontario west to British Columbia and south as far as Illinois, Kansas, Nuevo León, Guanajuato, and northern Baja California.^{[5] [6] [7]} It grows well on dry lands,^[8] but also on plains, rocky slopes and cliffs, at low elevations and in coniferous forests.

Cultivation

The wildflower gardener Claude A. Barr regarded it as a useful plant in the garden for its masses of bright yellow flowers.^[9]

Notes and References

1. Web site: Heterotheca villosa . Semple . John C. . John C. Semple . 29 July 2020 . 1993 . . 2 . en . 9780195305647 . 179887072 . 22 October 2024 .
2. Book: Spellenberg, Richard . National Audubon Society Field Guide to North American Wildflowers: Western Region . Knopf . 2001 . 978-0-375-40233-3 . rev . 379–380 . 1979.
3. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066930 Flora of North America, Heterotheca villosa (Pursh) Shinners, 1951. Hairy goldenaster
4. https://uwaterloo.ca/astereae-lab/research/goldenasters/heterotheca/heterotheca-sect-phyllotheca/heterotheca-villosa University of Waterloo (Canada), Astereae Lab, Heterotheca villosa
5. http://bonap.net/MapGallery/County/Heterotheca%20villosa.png Biota of North America Program 2014 county distribution map
6. http://swbiodiversity.org/seinet/taxa/index.php?taxon=3826&taxauthid=1 SEINet, Southwestern Biodiversity, Arizona chapter
7. http://www.tropicos.org/Name/2700900?tab=specimens Tropicos, specimen listing for Heterotheca villosa (Pursh) Shinners
8. Web site: Heterotheca villosa . TWC Staff . Lady Bird Johnson Wildflower Center Plant Database . University of Texas at Austin . en . 22 October 2024.
9. Book: Barr . Claude A. . Jewels of the plains : wild flowers of the Great Plains grasslands and hills . 1983 . University of Minnesota Press . Minneapolis . 0-8166-1127-0 . 56.