Sagittaria subulata

(Linnaeus) Buchenau

Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen 2: 490. 1871.

Basionym: Alisma subulatum Linnaeus Sp. Pl. 1: 343. 1753 (as subulata)
Synonyms: Sagittaria lorata (Chapman) Small Sagittaria subulata var. natans (Michaux) J. G. Smith
Treatment appears in FNA Volume 22.

Herbs, perennial, to 40 cm, on tidal muds; rhizomes absent; stolons present; corms present. Leaves submersed, phyllodial, lenticular, 5–40 ´ 0.1–0.4 cm, or rarely floating; petiole terete, 2.4–4 cm; blade linear-lanceolate to ovate, 1–2.5 ´ 0.3–1.5 cm. Inflorescences racemes, of 2–7 whorls, floating, 2–11 ´ 1.5–4.5 cm; peduncles 5–40 cm; bracts connate more than ¼ total length, subulate, 1.5–4.2 mm, delicate, not papillose; fruiting pedicels recurved, cylindric to club-shaped, 0.2–1.1 cm. Flowers 0.4–1.2 cm diam.; sepals spreading to recurved in staminate, erect in pistillate, enclosing flower or fruiting head; filaments dilated, longer than anther, glabrous; pistillate pedicellate, occasionally with ring of sterile stamens. Fruiting heads 0.55–0.8 cm diam.; achenes oblanceoloid, abaxially keeled, 2 ´ 1.5 mm, beaked; faces not tuberculate, wings 1–2, crenate, glands 0–1; beak lateral, erect, 0.2–0.4 mm. 2n = 22.


Phenology: Flowering summer–fall.
Habitat: Streams and brackish bays
Elevation: 0–100 m

Distribution

V22 479-distribution-map.jpg

Ala., Conn., Del., D.C., Fla., Ga., Md., Mass., Miss., N.J., N.Y., N.C., Pa., R.I., S.C., Va., South America (Colombia)

Discussion

Sagittaria subulata occurs in shallow brackish waters near the coast. The plants are especially common in areas that are exposed during low tides.

Selected References

None.

Lower Taxa

None.
... more about "Sagittaria subulata"
keeled;oblanceoloid +
papillose +  and smooth +
Obtuse (?) +  and Acute (?) +
Robert R. Haynes +  and C. Barre Hellquist +
(Linnaeus) Buchenau +
attenuate;hastate or sagittate +
Alisma subulatum +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
linear-lanceolate +  and ovate +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
more than ¼ total length +
not papillose +
cylindric +  and club-shaped +
Ala. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Md. +, Mass. +, Miss. +, N.J. +, N.Y. +, N.C. +, Pa. +, R.I. +, S.C. +, Va. +  and South America (Colombia) +
0–100 m +
u--shaped +
not tuberculate +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
pistillate +, staminate +, sessile +  and pedicellate +
0.4 cm4 mm <br />0.004 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
hypogynous +
not +, keeled +  and compressed +
0 (?) +  and 1 (?) +
Streams and brackish bays +
decumbent +  and floating +
1.5 cm15 mm <br />0.015 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
petiolate +  and sessile +
5 (?) +  and 40 (?) +
lenticular +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
decumbent +  and floating +
submersed +, floating +  and emersed +
ascending +  and recurved +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
deciduous +
2.4 cm24 mm <br />0.024 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Flowering summer–fall. +
not radiating +  and arranged +
Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen +
decumbent +  and floating +
persistent +
erect;spreading;recurved +
sculptured +
herbaceous;leathery +
Sagittaria lorata +  and Sagittaria subulata var. natans +
Sagittaria subulata +
Sagittaria +
species +
white;brown +
emersed +  and submersed +
glabrous +  and sparsely pubescent +
bracteolate +  and branching +
crenate +