Halophila engelmannii

Illustrator: John Myers

Copyright: Flora of North America Association

Rhizomes with 2 scales at each node. Erect stem apparent, scales 2, near middle. Leaves in pseudowhorl at apex of erect stem, 10–30 × 3–6 mm; blade linear-oblong to oblong, base cuneate, margins serrulate, apex obtuse to apiculate. Inflorescences: spathes 1-flowered. Flowers unisexual, staminate and pistillate on different plants; staminate flowers unknown; pistillate flowers sessile to nearly sessile, ca. 4 mm. Fruits beaked. Seeds 0.3 mm.

Phenology: Flowering spring.
Habitat: Sandy to coral substrates of marine waters
Elevation: -40–0 m

Distribution

• Generated Map
• Legacy Map

Fla., La., Tex., West Indies (Cuba, Bahama Islands).

Discussion

Selected References

Allen, G. E. 1976. Investigations and current status of insect enemies as biological control agents of aquatic weeds. In: C. K. Varshney and J. Rzóska, eds. 1976. Aquatic Weeds in South East Asia. The Hague. Pp. 299--306.

Austin, D. F. 1978. Exotic plants and their effects in southeastern Florida. Environm. Conservation 5: 25--34.

Davenport, L. J. 1980. In: IOPB chromosome number reports LXVII. Taxon 29: 347--367.

Gadella, T. W. J. and E. Kliphuis. 1973. Chromosome numbers of flowering plants in The Netherlands. VI. Proc. K. Ned. Acad. Wet., Ser. C, 76: 303--311.

Tarver, D. P. et al. 1978. Aquatic and Wetland Plants of Florida. Tallahassee.

Lower Taxa

None.