Triumfetta discolor Rose
Descripción
Low, spreading, bushy shrubs about 8 dm. high; branches and inflorescence axes rough, scurfy, with many long, spreading, stellate hairs. Leaves broadly ovate to rhombic-ovate, about 7-9 cm. long and 6-8 cm. wide, the base rounded, rarely subcordate, the tip abruptly acute, the serrations unequal, blunt and irregular, the upper surface greenish, with few scattered, short, coarse, stellate hairs, the lower pallid, smooth, with dense stellate tomentum; petioles 3-5 cm. long, clothed with long, spreading, stellate hairs. Inflorescences axillary, rarely terminal, the cymes of 2 cymules, rather lax, the flowering peduncles 3-4 mm. long, the pedicels about 2 mm. long, the subtending bracteoles prominent. Flowers hermaphrodite, the buds oblongoid, about 15-20 mm. long slightly before anthesis, the apical appendages short, about 1 mm. long, lightly pubescent; sepals oblong, about 18 mm. long, brownish and lightly pubescent without, greenish and glabrescent within; petals broadly obovate, about 15 mm. long and 3-4 mm. wide, deep yellow, the claw about 2-3 mm. long, slightly plumose; gonophore broad, about 1 mm. long and 2-3 mm. wide, the glands quadrangular, subequalling the gonophore; urceolus prominent, about 0.75 mm. high, many-lobed, densely ciliate; stamens usually 20, rarely 25, the filaments glabrous; ovary orbicular, about 2 mm. long, the spinules numerous, recurved, the style 15-17 mm. long, the stigma acute. Fruit orbicular, the body about 6-7 mm. in diameter at maturity, slightly stellate-pubescent, loculicidally dehiscent, 3-loculate, each cell 2-seeded; spines about 75, about 2 mm. long, lightly pubescent; seeds ovoid, about 1.5-2.0 mm. long and 1.0-1.5 mm. wide.A
Distribución
México (país) EndémicoB
Elevación
1000 – 1700 mA
Tipo de vegetación
Bosque de encino, SabanaA
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Bibliografía
A. Lay, K. K. 1950: The American species of Triumfetta L. – Ann. Missouri Bot. Gard. 37(3): 315–395. https://doi.org/10.2307/2394513