Texas
Wildbuds

Ageratina wrightii

(Wright’s Snakeroot)

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Ageratina wrightii, Pinnacles Trail, Big Bend National Park 6949/6964

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Ageratina wrightii, Lost Mine Trail, Big Bend National Park 1148

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Ageratina wrightii, Pinnacles Trail, Big Bend National Park 6874/6896

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Ageratina wrightii, Lost Mine Trail, Big Bend National Park 1167

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Ageratina wrightii, Lost Mine Trail, Big Bend National Park 1161

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Ageratina wrightii, Pinnacles Trail, Big Bend National Park 1824

Scientific Name Ageratina wrightii (Eupatorium wrightii) USDA PLANTS Symbol AGWR2
Common Name Wright's Snakeroot, Wright Ageratina ITIS Taxonomic Serial No. 36477
Family Asteraceae (Sunflower) SEINet
Reference
Click Here
Description Habitat: Dry areas on open or wooded rocky slopes at higher elevations in the Big Bend.
Plant: Short, rounded shrub, usually less than 2 feet tall, with many short, tangled, leafy stems.
Leaves: Opposite or almost so, rounded ovate-deltoid (triangular) up to 3/4-inch across with blunt tips and 3 main veins; short, narrowly-winged petioles; blade edges smooth or with 3 to 7 very short teeth on each side (shallowly crenate).
Inflorescence: Terminal clusters of 10 to 12 white to pinkish, tubular flowers; ray flowers absent; florets with 5-toothed corollas (resembling tiny petals).
Bloom Period: July to November.
References: SEINet, "Little Big Bend" by Roy Morey and "Manual of the Vascular Plants of Texas" by Correll and Johnston.
BONAP Distribution Map

Map Color Key
Texas Status:
Native

Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County

© Tom Lebsack 2024