Buddleja Sessiliflora, Rio Grande Butterfly Bush
Plants > Wildflowers > Scrophulariaceae > Buddleja Sessiliflora
Common names:
Rio grande butterfly bush, tepozán
Family:
Scientific name:
Buddleja sessiliflora
Main flower color:
Range:
Southern Arizona and a few places in Texas
Height:
Up to 13 feet
Habitat:
Roadsides, canyons, riverbanks, disturbed areas, riparian woodland, from near sea level to 4,500 feet
Leaves:
Ovate, up to 9 inches long (basal) and elliptic to lanceolate, up to 6 inches long (cauline)
Season:
January to April
Buddleja sessiliflora, a shrub or small tree, is found around Nogales and Tucson in south Arizona, and a few places in Texas, close to the Rio Grande; mostly in the far south, around McAllen. Stems branch profusely, and have a tomentose hair covering when young. Leaves are dark green and hairless above, finely hairy below, and are lined with irregular teeth, large and small.
The inflorescence is a terminal, elongated cluster, the flowers in opposite, spherical groupings (five to 20 pairs), each containing between ten and 35 heads. There are no bracteoles. The flowers, rather bad smelling, have a light green calyx, topped by four small lobes, and a greenish-yellow corolla with four spreading, triangular lobes, sparsely hairy. Stamens are included.
The inflorescence is a terminal, elongated cluster, the flowers in opposite, spherical groupings (five to 20 pairs), each containing between ten and 35 heads. There are no bracteoles. The flowers, rather bad smelling, have a light green calyx, topped by four small lobes, and a greenish-yellow corolla with four spreading, triangular lobes, sparsely hairy. Stamens are included.
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