Fryxellia pygmaea (Correll) Bates
Descripción
Caespitose herbs, presumably perennial, with stellate pubescence. Leaf blades 2-4 cm long, ovate or oblong-lanceolate, serrate or crenate, acute or obtuse, lack- ing foliar nectaries; petioles subequal to the blades or somewhat shorter; stipules linear. Flowers solitary in the leaf axils; pedicels not articulated, shorter than the petioles; involucel absent; calyx 12 mm long in flower, accrescent to 17 mm long in fruit, ca. half-divided, more or less inflated; petals to 15 mm long, yellowish; androecium included, antheriferous at apex; styles 12, the stigmas capitate. Fruit schizocarpic, 9-10 mm in diameter, a flattened disk with radiating spines, stellate- pubescent; mericarps 12, laterally reticulate below but smooth above, with endo- glossum; seeds solitary, situated below the endoglossum, glabrous except on hilum. Chromosome number unknown. A
Ecología y Hábitat
Fryxellia pygmaea is known only from northern Coahuila and adjacent Texas. It is apparently rare or highly seasonal.A
Tipo de vegetación
No especificadoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC