Grindelia subalpina explained

Grindelia subalpina, the subalpine gumweed, is a North American species of flowering plants in the Astereae tribe of the family Asteraceae.

Distribution

The plant is native to the Rocky Mountains, in Wyoming, Colorado, and New Mexico.^[1]

It grows in open rocky or gravelly sites in the Rocky Mountains.

Description

Grindelia subalpina is a biennial, or perennial herb up to 60 cm (2 feet) tall.

The plant usually produces numerous flower heads in open branching arrays. Each head has 18-27 ray flowers, surrounding a large number of tiny disc flowers.^[2]

Varieties

• Grindelia subalpina var. erecta — endemic to Colorado and Wyoming.^[3]
• Grindelia subalpina var. subalpina ^[4]

External links

• USDA Plants Profile for Grindelia subalpina (subalpine gumweed)
• Isotype of Grindelia erecta (syn of Grindelia subalpina); Missouri Botanical Garden herbarium specimen (photo) — collected in Wyoming in 1898.

Notes and References

1. http://bonap.net/MapGallery/County/Grindelia%20subalpina.png Biota of North America Program 2014 county distribution map
2. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066819 Flora of North America, Grindelia scabra Greene, 1898.
3. http://plants.usda.gov/core/profile?symbol=GRSUE USDA: Grindelia subalpina var. erecta
4. http://plants.usda.gov/core/profile?symbol=GRSUS USDA: Grindelia subalpina var. subalpina