Sagittaria australis

(J. G. Smith) Small

Flora of the Southeastern United States 45. 1903.

Common names: Appalachian arrowhead
Basionym: Sagittaria longirostra var. australis J. G. Smith Bull. Torrey Bot. Club 24: 20. 1897
Synonyms: Sagittaria engelmanniana subsp. longirostra (Micheli) Bogin
Treatment appears in FNA Volume 22.

Herbs, perennial, to 130 cm; rhizomes absent; stolons present; corms present. Leaves emersed; petiole 5-winged, 19–85 cm; blade sagittate, 3–19 × 2.5–11 cm, basal lobes ± equal to remainder of blade. Inflorescences racemes, of 5–12 whorls, emersed, 10–29 × 3–5 cm; peduncles 25–105 cm; bracts distinct or if connate, then less than ¼ total length, lanceolate, 7–30 mm, papery, not papillose; fruiting pedicels spreading to ascending, cylindric, 0.3–2.3 cm. Flowers to 3 cm diam.; sepals recurved to spreading, not enclosing flower or fruiting head; filaments cylindric, longer than anthers, glabrous; pistillate pedicellate, without ring of sterile stamens. Fruiting heads 1–2.2 cm diam.; achenes obovoid, without abaxial keel, 2.1–3.2 × 1.4–2.3 mm, beaked; faces not tuberculate, wings 0–2, ± entire, glands absent; beak lateral, strongly recurved, 4–17 mm. 2n = 22.

Phenology: Flowering summer–early fall (Jul–Oct).
Habitat: Slightly basic to slightly acidic ponds, lakes, and swamps
Elevation: 1–300 m


V22 141-distribution-map.jpg

Ala., Ark., Fla., Ga., Ill., Ind., Iowa, Ky., La., Md., Miss., Mo., N.J., N.Y., N.C., Ohio, Pa., S.C., Tenn., Va., W.Va.


The name Sagittaria longirostra (Micheli) J. G. Smith has been misapplied to S. australis (J. G. Smith) Small (E. O. Beal et al. 1980).

Lower Taxa

... more about "Sagittaria australis"
Robert R. Haynes +  and C. Barre Hellquist +
(J. G. Smith) Small +
Sagittaria longirostra var. australis +
Appalachian arrowhead +
Ala. +, Ark. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Ky. +, La. +, Md. +, Miss. +, Mo. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, S.C. +, Tenn. +, Va. +  and W.Va. +
1–300 m +
Slightly basic to slightly acidic ponds, lakes, and swamps +
Flowering summer–early fall (Jul–Oct). +
Flora of the Southeastern United States +
beal1980a +
Sagittaria engelmanniana subsp. longirostra +
Sagittaria australis +
Sagittaria +
species +