- Bassia hyssopifolia a densely pilose, grayish broadleaf annual with stems branched from the base. The mature plant can reach 4 ft. (1.2 m) tall.
- Leaves form a rosette.
- Flowers bloom from July through October. Flowering stems form spike flower heads along which inconspicuous flowers develop in clusters at the bases of leaf stalks and at the ends of the stems. Individual flowers do not have petals, but they have outer lobes that are densely covered with tan to golden, soft, furry hairs.
- Fruit remain enclosed within the dried flower. They are thin walled and have five, hooked spine lobes (one hook attached to each lobe).
- Ecological Threat
- Bassia hyssopifolia will infest roadsides, disturbed places, crop fields, ditch banks, and seasonal wetlands. Bassia hyssopifolia is sometimes confused with Russian thistle (Salsola iberica). Russian thistle is more profusely branched and spiny than Bassia.
A densely pilose, grayish annual with stems branched from the base, similar in habit to lambs quarters (Chenopodium album).
Bassia hyssopifolia is sometimes confused with Russian thistle (Salsola iberica). Russian thistle is more profusely branched and spiny than Bassia.
- Element Stewardship Abstract - The Nature Conservancy
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EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org
State Invasive List - This map identifies those states that list this species on their invasive species list. For more information, visit Invasive.org
Invasive Listing Sources
- California Invasive Plant Council
- Faith Campbell, 1998
- Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
- John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
- Pacific Northwest Exotic Pest Plant Council, 1998
- WeedUS - Database of Plants Invading Natural Areas in the United States
|Common Name Reference:|| Weed Science Society of America Common Names List|
|Scientific Name Reference:||USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|