familyNyssaceae
genusNyssa

Nyssa ursina

Small

Torreya 27: 92. 1927.

Common names: Bear or Apalachicola tupelo
EndemicConservation concern
Synonyms: Nyssa biflora var. ursina (Small) D. B. Ward N. sylvatica var. ursina (Small) J. Wen & Stuessy
Treatment appears in FNA Volume 12. Treatment on page 461. Mentioned on page 459.

Shrubs or trees, 2–5 m, crown typically intricately branched; bark irregularly fissured; twigs usually glabrous, rarely puberulent. Leaves: petiole (4–)5–9 mm; blade narrowly elliptic to oblanceolate, rarely to ovate, 3–7 × 1–2 cm, coriaceous, base cuneate to rounded, margins entire, apex obtuse, abaxial surface glabrous or puberulent (primarily along veins), adaxial surface glabrous. Inflorescences: peduncle 3.2–5.5 cm, sparsely hairy or glabrous; staminate (1–)2–5-flowered, pistillate and bisexual 1–2-flowered. Staminate pedicels present. Flowers: ovary glabrous. Drupes usually black, rarely blue, glaucous, globose, 7–11 mm, smooth; stone 6–8 mm, with several low, rounded longitudinal ridges.


Phenology: Flowering spring.
Habitat: Open savannas, depressions in flatwoods.
Elevation: 0–70 m.

Distribution

Loading map...
Created with Raphaël 2.2.0
V12 550-distribution-map.jpg

Fla.

Discussion

Nyssa ursina is limited to six counties in the panhandle region of Florida. It occurs together with N. biflora throughout its limited range, which supports recognizing it as a distinct species.

Selected References

None.

Lower Taxa

None.