species 2,079 observations
Havard's Century Plant
Agave havardiana
Field notes
Agave havardiana is a plant species native to the Big Bend area of western Texas as well as Chihuahua and Coahuila. It prefers grassy to rocky slopes or woodlands at elevations of 1200–2000 m.
Agave havardiana is an acaulescent species forming rosettes low to the ground, sometimes creating suckers but not forming large colonies like some other species. Leaves are up to 70 cm (28 inches) long, with teeth along the margins and at the tip. Flowering stalks can be up to 7 m (23 feet) tall, with yellow to yellow-green flowers. Fruits are dry, oblong, up to 6 cm (2.4 inches) long.
This species is under threat from habitat loss, mostly for cattle ranching.
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Caterpillars
Moths and butterflies raised on it
Comadia redtenbacheri, Mary's Giant-Skipper
2
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Plant eaters
Animals that feed on it
Broad-tailed Hummingbird, Scott's Oriole, Montezuma Quail
3
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Flower visitors
Pollinators and other flower visitors
Blue-throated Mountain-gem, Mexican Long-nosed Bat, Rivoli's Hummingbird, Two-tailed Swallowtail
5
Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Key traits
- Layer
- Shrubs
- Light
- Full sun
- Moisture
- Dry
- Water use
- Low
- Deer resistant
- Yes
- Plant type
- Perennial Shrub Wildflower
From the Lady Bird Johnson Wildflower Center and USDA PLANTS.