Matelea producta (Torr.) Woods.
Family: Apocynaceae
Texas milkvine
[Gonolobus productus Torr.]
Matelea producta image
Max Licher  
Plant: Perennial herbaceous vine, irsute to pubescent, twining vines from a woody base, the hairs mixed with shorter, glandular, mostly yellow- to brown-tipped trichomes; milky sap Leaves: cordate to subhastate, more or less abruptly narrowed to an attenuate tip, 1-9 cm long; petioles 1-3 cm long, shorter than the blades INFLORESCENCE: umbelliform, the peduncles tardily elongating to 3 cm. Flowers: ca. 1 cm long; calyx lobes ca. 3 mm long, half as long as the corolla tube; corolla greenish yellow, pubescent outside, glabrous inside, cylindric-campanulate, the tube 4-7 mm long, the lobes oblong, erect, about as long as the tube, the tips spreading; crown included deep within the corolla tube and arising from it, cup-shaped, 1-2 mm long, about as long as the stigma head, the rim entire and undulate to mostly notched opposite the corpuscula, the inner surface with 5 fleshy protuberances opposite the anthers; gynostegium subsessile, the anther head disk-shaped, the anther wings ca. 0.25 mm long; corpusculum 0.2-0.3 mm long, the pollinia horizontal from the translator arms, deltoid to oblong-quadrate, ca. 0.4 mm across; stigma head apically flat, depressed in the center Fruit: FOLLICLES 9-12 cm long, glabrous Misc: Desert grasslands, chaparral, alluvial thickets, mts; 900-1700 m (3000-5500 ft); May-Aug REFERENCES: Sundell, Eric. 1994. Asclepiadaceae. J. Ariz. - Nev. Acad. Sci. Volume 27, 169-187.
Sundell 1993
Duration: Perennial Nativity: Native Lifeform: Vine General: Hirsute to pubescent, twining vines from woody base, hairs mixed with shorter, glandular, mostly yellow to brown tipped trichomes. Leaves: Cordate to subhastate, more or less abruptly narrowed to an attenuate tip, 1-9 cm long, petioles 1-3 cm long, shorter than blades. Flowers: Umbelliform inflorescences, peduncles tardily elongating to 3 cm, flowers about 1 cm long; calyx lobes 3 mm long, half that of the corolla tube; corolla greenish yellow, pubescent outside, glabrous inside, cylindric-campanulate, tube 4-7 mm long, lobes oblong, erect, about as long as tube, tips spreading; crown included deep within corolla tube and arising from it, cup-shaped, 1-2 mm long, about as long as stigma head. Fruits: Follicles 9-12 cm long, glabrous. Ecology: Found in grasslands, chaparral, alluvial thickets from 3,000-5,500 ft (914-1676 m); flowers May-August. Distribution: AZ, NM, s TX; south to n MEX. Notes: This species is fairly different from the other southwestern species, M. parvifolia. Distinguished by being a perennial, twining vine from a giant, enlarged root; glandular stems; lvs 2-9 cm long (much shorter in M. parvifolia); the green flowers and glabrous, non-warty fruits. Ethnobotany: The seeds were eaten fresh or boiled. Etymology: Matelea is thought to be named for the French botanist Jean Baptiste Cristophore Fusee Aublet (1720-1778), while producta means stretched out. Synonyms: Gonolobus productus Editor: SBuckley, 2010
Matelea producta image
Max Licher  
Matelea producta image
Max Licher  
Matelea producta image
Max Licher  
Matelea producta image
Max Licher  
Matelea producta image
Max Licher  
Matelea producta image
Liz Makings  
Matelea producta image
Patrick Alexander  
Matelea producta image
Patrick Alexander  
Matelea producta image
Patrick Alexander  
Matelea producta image
Patrick Alexander  
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Liz Makings  
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image
Matelea producta image