Passiflora mexicana Juss., Passifloraceae

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Present on Pacific Islands?  no

Primarily a threat at high elevations?  no

Risk assessment results:  Evaluate, score: 4 (Go to the risk assessment).

Common name(s): [more details]

English: Mexican passionflower

Habit:  vine

Description:  "Perennial vine; 2-8 m long, glabrous throughout. Leaves: bilobed, occasionally variegated, the margins entire; laminar nectaries borne abaxially between the main veins; petioles eglandular; stipules setaceous to linear triangular, subfalcate. Inflorescence: peduncles paired or solitary, arising colateral to the tendril; peduncles articulate distal to the bracts; bracts 1.5-4 mm long, 0.2-0.8 mm wide, setaceous to narrowly lanceolate, often 3-toothed. Flowers: ca. 2-3 cm in diameter, light green or yellowish green, the corona red or reddish purple; sepals much longer than the inconspicuous petals, coronal filaments in 2 series, the outer 8-12 mm long, the inner 2 mm long; ovary glabrous or nearly so. Fruits: 0.8-1.6 cm long, subglobose to widely ellipsoid, purplish black; seeds transversely grooved"  (Southwest Online Information Network).

Habitat/ecology:  In its native habitat, "thickets near riparian zones and washes; 750-1250 m (2500-4100 ft)"  (Southwest Online Information Network).

Propagation:  Seed

Native range:  Arizona, northern Mexico (GRIN).

Presence:

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Mexico Mexico	Mexico (United Mexican States)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)

Also reported from
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
United States (continental except west coast) United States (other states)	United States (other states)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011) Arizona

Additional information:
Additional online information about Passiflora mexicana is available from the Hawaiian Ecosystems at Risk project (HEAR).

Information about Passiflora mexicana as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

Taxonomic information about Passiflora mexicana may be available from the Germplasm Resources Information Network (GRIN).

References:

U. S. Government. 2011. Integrated Taxonomic Information System (ITIS) (on-line resource).

U.S. Dept. Agr., Agr. Res. Serv. 2011. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.

U.S. Dept. Agr., Nat. Res. Cons. Serv. 2011. The PLANTS Database. National Plant Data Center, Baton Rouge, LA 70874-4490 USA.