Passiflora arizonica

(Killip) D. H. Goldman

Madroño 50: 249. 2004.

Basionyms: Passiflora foetida var. arizonica Killip Publ. Field Mus. Nat. Hist., Bot. Ser. 19: 490. 1938
Treatment appears in FNA Volume 6. Treatment on page 177. Mentioned on page 174.

Stems terete, densely hairy. Leaves pungent, densely hairy, glandular-ciliate; stipules pectinate, 1–8 × 1–4 mm, with glandular bristles or hairs; petiole with glandular bristles or hairs; blade roughly symmetric, 1.5–5 × 1–7 cm, moderately to deeply 3–5-lobed, middle lobe as long as or longer than lateral lobes, margins sharply dentate; abaxial fine veins weakly to moderately raised, abaxial nectaries absent. Floral bracts pinnatifid, 15–35 × 10–28 mm, margins sharply dentate, with glandular bristles or hairs. Flowers: floral-tube cuplike, 5–7 mm deep; sepals white, 17–38 × 6–9 mm; petals white, 16–30 × 6–12 mm; corona filament whorls 5 or 6, outer 2 whorls white basally, pale-purple apically, linear, terete to transversely compressed, 9–25 mm. Berries green to yellow-green, ovoid, 20–35 × 18–30 mm.


Phenology: Flowering Jun–Sep.
Habitat: Rocky, igneous slopes in semidesert grasslands and oak savannas
Elevation: 1000–1800 m

Discussion

Passiflora arizonica is known only from portions of Pima and Santa Cruz counties, Arizona, and eastern Sonora, and has been confused with P. arida (D. H. Goldman 2003). It flowers during the summer rainy season, usually August and September. Unlike most other members of the genus, particularly those of sect. Dysosmia, to which it belongs, P. arizonica flowers in the evening, closing around midnight. The fragrant flowers have a deep floral cup, and may be pollinated by nocturnal moths.

Selected References

None.

Lower Taxa

None.

... more about "Passiflora arizonica"
short-to-elongate +
versatile +  and dorsifixed +
Douglas H. Goldman +  and John M. MacDougal +
(Killip) D. H. Goldman +
smooth;rough or corky +
cuneate;cordate +
Passiflora foetida var. arizonica +
green +  and yellow-green +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
1.8 cm18 mm <br />0.018 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
3-5-lobed +
1cm;7cm +
scattered;whorled +
Ariz. +  and Mexico (Sonora) +
1000–1800 m +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
10mm +  and 28mm +
unisexual +  and bisexual +
Rocky, igneous slopes in semidesert grasslands and oak savannas +
many-branched +  and simple +
paired +  and solitary +
glandular-ciliate +  and hairy +
membranous +
3[-5]-carpellate +
1.6 cm16 mm <br />0.016 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Flowering Jun–Sep. +
compressed +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
2-lobed;clavate;reniform +
0.1 cm1 mm <br />0.001 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
pectinate +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
distinct +
grooved +  and reticulate +
Passiflora arizonica +
Passiflora +
species +
hairy +  and glabrous +
herbaceous +  and woody +
pale-purple +  and white +
terete +  and transversely compressed +
0.9 cm9 mm <br />0.009 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +