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Big Bend Bluebonnet

Lupinus havardii S. Watson

Physical Description

provided by USDA PLANTS text
Annual, Herbs, Taproot present, Nodules present, Stems erect or ascending, Stems less than 1 m tall, Stems solid, Stems or young twigs glabrous or sparsely glabrate, Stems or young twigs sparsely to densely hairy, Stem hairs hispid to villous, Leaves alternate, Leaves petiolate, Stipules conspicuous, Stipules setiform, subulate or acicular, Stipules persistent, Stipules adnate to petiole, Leaves compound, Leaves palmately 5-11 foliate, Leaf or leaflet margins entire, Leaflets 5-9, Leaves hairy on one or both surfaces, Inflorescences racemes, Inflorescence terminal, Bracts conspicuously present, Bracts very small, absent or caducous, Bracteoles present, Flowers zygomorphic, Calyx 5-lobed, Calyx 2-lipped or 2-lobed, Calyx hairy, Petals separate, Corolla papilionaceous, Petals clawed, Petals blue, lavander to purple, or violet, Banner petal ovoid or obovate, Wing petals narrow, oblanceolate to oblong, Wi ng tips obtuse or rounded, Keel petals auriculate, spurred, or gibbous, Stamens 9-10, Stamens or anthers dimorphic, alternating large and small, Stamens monadelphous, united below, Filaments glabrous, Style terete, Fruit a legume, Fruit unilocular, Fruit freely dehiscent, Fruit elongate, straight, Fruit oblong or ellipsoidal, Fruit exserted from calyx, Fruit internally septate between the seeds, Fruit hairy, Fruit 3-10 seeded, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black, Seed surface mottled or patchy.
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Lupinus havardii

provided by wikipedia EN

Lupinus havardii is a species of lupine known by the common names Big Bend bluebonnet and Chisos bluebonnet. It is native to Texas and Chihuahua, where it blooms between January and June. Its habitat includes gravelly, fine talus, and the alluvial soils in the desert, valleys, hills, and mountain slopes.

It is an erect annual herb with a slender, branching stem which can reach over 4 ft in height. The height of the flower and plant is dependent on available soil moisture and can be as short as a few inches and as tall as the current record at 5ft 4in. The flower is about half an inch long and purple to blue in color. The spot on its banner is white to yellow turning red once the flower is no longer fertile. This color change makes the flower less visible to bees so they continue on to more fertile flowers. The palmate leaves are each made up of about seven leaflets. In the wild, white and even pink blooming plants are very rarely observed. These rare colors have been isolated and propagated by horticulturalists at Texas A&M University, and along with the blue flowers are available as a premium cut flower.

The Big Bend bluebonnet's specific epithet honors surgeon and botanist Valery Havard.

References

Ajilvsgi, Geyata. (1984). Wildflowers of Texas. Library of Congress: 84-50025

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Wikipedia authors and editors
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Lupinus havardii: Brief Summary

provided by wikipedia EN

Lupinus havardii is a species of lupine known by the common names Big Bend bluebonnet and Chisos bluebonnet. It is native to Texas and Chihuahua, where it blooms between January and June. Its habitat includes gravelly, fine talus, and the alluvial soils in the desert, valleys, hills, and mountain slopes.

It is an erect annual herb with a slender, branching stem which can reach over 4 ft in height. The height of the flower and plant is dependent on available soil moisture and can be as short as a few inches and as tall as the current record at 5ft 4in. The flower is about half an inch long and purple to blue in color. The spot on its banner is white to yellow turning red once the flower is no longer fertile. This color change makes the flower less visible to bees so they continue on to more fertile flowers. The palmate leaves are each made up of about seven leaflets. In the wild, white and even pink blooming plants are very rarely observed. These rare colors have been isolated and propagated by horticulturalists at Texas A&M University, and along with the blue flowers are available as a premium cut flower.

The Big Bend bluebonnet's specific epithet honors surgeon and botanist Valery Havard.

Bluebonnets in Big Bend National Park

Bluebonnets in Big Bend National Park

White and blue Big Bend Bluebonnets in the wild, Presidio County, Texas.

White and blue Big Bend Bluebonnets in the wild, Presidio County, Texas.

Pink Big Bend Bluebonnet in the wild, Presidio County, Texas.

Pink Big Bend Bluebonnet in the wild, Presidio County, Texas.

Pink, white, and blue Big Bend Bluebonnets in a greenhouse.

Pink, white, and blue Big Bend Bluebonnets in a greenhouse.

Pink and blue Big Bend Bluebonnets in a greenhouse.

Pink and blue Big Bend Bluebonnets in a greenhouse.

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