Peltandra sagittifolia

(Michaux) Morong

Memoirs of the Torrey Botanical Club 5: 102. 1894 (as sagittaefolia).

Common names: Spoonflower white arrow arum
IllustratedEndemic
Basionym: Calla sagittifolia Michaux Fl. Bor.-Amer. 2: 187. 1803
Synonyms: Peltandra glauca (Elliott) Feay ex A. W. Wood
Treatment appears in FNA Volume 22.

Leaves: petiole pink with green spots basally to green mottled with dark green to purple-green spots apically, 31–59 cm; blade light green, glaucous, 8–31 × (2.6–) 4–11 cm, smaller on average and less variable in shape than in Peltandra virginica; lateral-veins all ± same thickness. Inflorescences 5–12 cm; peduncle 30–58 cm; spathe tube light green inside and out, closed, 1.3–3.4 × 0.6–1.7 cm; spathe blade white, widely open, 3.8–9.4 × 1.9–4 cm, margins not undulate; spadix nearly cylindric, ±about 1/2 as long as spathe. Flowers: pistillate flowers pale green, ovaries 1-locular; ovules 1; staminate portion of spadix yellow; sterile flowers between pistillate and staminate flowers and also frequently a few at apex. Infructescences enclosed by spathe tube, pulling opening as fruits mature. Fruits red, 8.6–12.6 × 5.4–7 mm. Seeds 1, mucilage present, 7–10 mm. Chromosome number unknown not available.


Phenology: Flowering spring–mid summer.
Habitat: Acidic bogs and swampy woodlands, Atlantic and Gulf coastal plains
Elevation: 0–60 m

Distribution

V22 631-distribution-map.jpg

Ala., Fla., Ga., Miss., N.C., S.C.

Discussion

Peltandra sagittifolia, the rarest least common species of Araceae in North America, is monitored by conservation agencies in all states in which it occurs. Although its range is completely within the range of P. virginica, the two species occur in different habitats. Plants of P. sagittifolia grow only on acidic substrates with a mean pH of 4.8 (range 4.0 to 6.0).

Of conservation interest.

of conservation concern

Selected References

None.

Lower Taxa

None.
... more about "Peltandra sagittifolia"
Sue A. Thompson +
(Michaux) Morong +
cordate;hastate;sagittate +
Calla sagittifolia +
not peltate +  and simple +
pinnate or palmate-netted +  and parallel +
2.6 cm26 mm <br />0.026 m <br /> (4 cm40 mm <br />0.04 m <br />) +
light green +
8 cm80 mm <br />0.08 m <br /> (31 cm310 mm <br />0.31 m <br />) +
lanceolate;widely ovate +
smaller +
1.5 cm15 mm <br />0.015 m <br /> (?) +
4cm;11cm +
Spoonflower +  and white arrow arum +
underground +
Ala. +, Fla. +, Ga. +, Miss. +, N.C. +  and S.C. +
0–60 m +
staminate +  and pistillate +
proximal +  and apical +
sterile +  and unisexual +
8.6mm;12.6mm +
0.54 cm5.4 mm <br />0.0054 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
connate +  and distinct +
Acidic bogs and swampy woodlands, Atlantic and Gulf coastal plains +
5 cm50 mm <br />0.05 m <br /> (12 cm120 mm <br />0.12 m <br />) +
clustered +, alternate +  and solitary +
not undulate +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
with sterile flowers +  and naked +
30 cm300 mm <br />0.3 m <br /> (58 cm580 mm <br />0.58 m <br />) +
dark green to purple-green spots;green mottled;green spots;dark green to purple-green spots;pink +
31 cm310 mm <br />0.31 m <br /> (59 cm590 mm <br />0.59 m <br />) +
Flowering spring–mid summer. +
Memoirs of the Torrey Botanical Club +
cylindric +
3.8 cm38 mm <br />0.038 m <br /> (9.4 cm94 mm <br />0.094 m <br />) +
1.9 cm19 mm <br />0.019 m <br /> (4 cm40 mm <br />0.04 m <br />) +
deciduous +  and persistent +
1.3 cm13 mm <br />0.013 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Illustrated +  and Endemic +
embedded in spadix +  and sessile +
discoid +  and capitate +
hemispheric +
flat-topped +
Peltandra glauca +
Peltandra sagittifolia +
Peltandra +
species +
floating +  and emergent +