Asimina parviflora

(Michaux) Dunal

Monogr. Anonac., 82, plate 9. 1817.

Common names: Small-flowered pawpaw small-fruited pawpaw dwarf pawpaw
Endemic
Basionym: Orchidocarpum parviflorum Michaux Fl. Bor.-Am. 1: 329. 1803
Synonyms: Porcelia parviflora (Michaux) Persoon Uvaria parviflora (Michaux) Torrey & A. Gray
Treatment appears in FNA Volume 3.

Shrubs or low trees, to 6 m; trunks slender, at most to 10 cm diam. Branches spreading-ascending, slender; new shoots redbrown, distally minutely reddish tomentose. Leaves: petiole 5-10 mm. Leaf-blade obovate to oblanceolate, 6-15 (-20) cm, membranous, rarely leathery, base narrowly to broadly cuneate, margins barely revolute, apex acute to acuminate; surfaces abaxially minutely rusty-tomentose, aging hairy on veins only, adaxially puberulent on veins, aging glabrous. Inflorescences from previous years shoots before or during new leaf emergence; peduncle 0.3-0.8 cm, tomentose, hairs redbrown to tan; bracteoles 1 (-2), basal, usually ovate-triangular, rarely over 2-3 mm, hairy. Flowers maroon, rarely yellow, faintly fetid, 1-1.7 cm diam.; sepals triangular-deltate, 4-7 mm, abaxially rusty-tomentose; outer petals oblong to ovate, 1-1.3cm, apex excurved, lingulate, surfaces abaxially minutely rusty-tomentose; inner petals ovate, ca. 1/2 length of outer petals, base saccate, apex strongly recurved, veins adaxially incised, corrugate nectary zone indistinct or absent; pistils 5-7. Berries greenish yellow, 3-6 (-7) cm. Seeds chestnut-brown, 1-1.5 (-2) cm. 2n=18.


Phenology: Flowering early spring.
Habitat: Sands, sandy loams, or sandy alluvium of rich woods, alluvial terraces, and upland dry woods
Elevation: 0-700m

Distribution

V3 331-distribution-map.gif

Ala., Ark., Fla., Ga., La., Miss., N.C., S.C., Tenn., Tex., Va.

Discussion

Asimina parviflora is primarily a miniature version of A. triloba in flower, shoot, and leaf; it reaches tree size only in the karst country of Florida. Peduncles at anthesis are often so short that flowers appear sessile. Pubescence is of a lighter red or brown than that of A. triloba. Putative hybrids between the two have been observed in northern Alabama.

Selected References

None.

Lower Taxa

None.
... more about "Asimina parviflora"
lingulate;excurved;acute;acuminate +
Robert Kral +
(Michaux) Dunal +
aromatic +
thickened-corrugate +
cuneate +
Orchidocarpum parviflorum +
6 cm60 mm <br />0.06 m <br /> (7 cm70 mm <br />0.07 m <br />) +
greenish yellow +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
15 cm150 mm <br />0.15 m <br /> (20 cm200 mm <br />0.2 m <br />) +
6 cm60 mm <br />0.06 m <br /> (15 cm150 mm <br />0.15 m <br />) +
obovate;oblanceolate +
ovate-triangular +
spreading-ascending +
slender +
Small-flowered pawpaw +, small-fruited pawpaw +  and dwarf pawpaw +
blunt +  and nearly spheric or cuboid +
Ala. +, Ark. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, S.C. +, Tenn. +, Tex. +  and Va. +
0-700m +
pedunculate +  and few-flowered +
yellow +  and maroon +
1 cm10 mm <br />0.01 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
nodding;nearly erect +
unisexual +  and bisexual +
enlarged +
oblong-cylindric +
coalescent +  and distinct +
Sands, sandy loams, or sandy alluvium of rich woods, alluvial terraces, and upland dry woods +
redbrown +  and tan +
glabrous;variously hairy +
leathery +  and membranous +
petiolate +  and simple +
deciduous +
aromatic +
flat-topped +
oblong;ovate +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
bracteolate +  and bracteate +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
6 +  and 12 +
unequal +  and larger +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering early spring. +
sessile +  and stipitate +
5 +  and 7 +
septate;diaphragmed +
Monogr. Anonac., +
swollen;convex;more or less globose or elongate +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
chestnut-brown +
3 +  and many +
compressed +  and bean--shaped +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
imbricate +  and valvate +
deciduous +
distinct +
rusty-tomentose +
triangular-deltate +
0.4 cm4 mm <br />0.004 m <br /> (?) +  and 0.7 cm7 mm <br />0.007 m <br /> (?) +
reddish +  and redbrown +
sparse;copious +
hypogynous +
short-columnar +
rusty-tomentose +, glabrous +, puberulent +  and hairy +
Porcelia parviflora +  and Uvaria parviflora +
Asimina parviflora +
species +
straight +
0cm;0-10cm +
slender +
incised +
evergreen +  and deciduous +
tree +  and shrub +
unequal +
thickened-corrugate +