Sagittaria lancifolia

Linnaeus

Syst. Nat. ed. 10 2: 1270. 1759.

Treatment appears in FNA Volume 22.

Herbs, perennial, to 2 m; rhizomes coarse; stolons absent; corms absent. Leaves emersed; petiole terete, 44–58 cm; blade linear to ovate or elliptic, 20.3–35 × 0.7–16 cm. Inflorescences racemes or panicles, of 6–13 whorls, emersed, 16–72 × 19–60 cm; peduncles 75–125.5 cm; bracts connate more than or equal to ¼ total length, lanceolate to ovatelanceolate, 3–32 mm, coarse, papillose or not; fruiting pedicels spreading, cylindric, 0.6–3.8 cm. Flowers to 3.3 cm diam.; sepals recurved to spreading, not enclosing flower or fruiting head; filaments cylindric, longer than anthers, pubescent; pistillate pedicellate, without ring of sterile stamens. Fruiting heads 0.5–1.2 cm diam.; achenes oblanceoloid, abaxially keeled, 1.6–2.5 × 0.8–1.1 mm, beaked; faces not tuberculate, wings absent, glands 1; beak lateral, erect, 0.3–0.7 mm.

Distribution

V22 140-distribution-map.jpg

Ala., Fla., Ga., La., Miss., N.C., S.C., Tex., Va., Mexico, West Indies, Central America, South America

Discussion

Subspecies 2 (2 in the flora).

Selected References

None.

Key

1 Bracts and sepals striate to ribbed; leaves linear to ovate Sagittaria lancifolia subsp. lancifolia
1 Bracts and sepals papillose; leaves lanceolate to broadly ovate Sagittaria lancifolia subsp. media
... more about "Sagittaria lancifolia"
0.16 cm1.6 mm <br />0.0016 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
keeled;oblanceoloid +
0.8mm;1.1mm +
papillose +  and smooth +
Obtuse (?) +  and Acute (?) +
Robert R. Haynes +  and C. Barre Hellquist +
Linnaeus +
attenuate;hastate or sagittate +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
20.3 cm203 mm <br />0.203 m <br /> (35 cm350 mm <br />0.35 m <br />) +
linear +  and ovate or elliptic +
0.7cm +  and 16cm +
not +, papillose +  and coarse +
cylindric +, lanceolate +  and ovatelanceolate +
equal to ¼ total length +  and more than +
Ala. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, S.C. +, Tex. +, Va. +, Mexico +, West Indies +, Central America +  and South America +
u--shaped +
not tuberculate +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
cylindric +
pistillate +, staminate +, sessile +  and pedicellate +
0 cm0 mm <br />0 m <br /> (3.3 cm33 mm <br />0.033 m <br />) +
hypogynous +
not +, keeled +  and compressed +
decumbent +  and floating +
petiolate +  and sessile +
decumbent +  and floating +
16cm;72cm +
19 cm190 mm <br />0.19 m <br /> (60 cm600 mm <br />0.6 m <br />) +
ascending +  and recurved +
75 cm750 mm <br />0.75 m <br /> (125.5 cm1,255 mm <br />1.255 m <br />) +
deciduous +
44 cm440 mm <br />0.44 m <br /> (58 cm580 mm <br />0.58 m <br />) +
not radiating +  and arranged +
Syst. Nat. ed. 10 +
decumbent +  and floating +
16cm;72cm +
19cm;60cm +
persistent +
recurved;spreading +
sculptured +
herbaceous;leathery +
Lophotocarpus +
Sagittaria lancifolia +
Sagittaria +
species +
white;brown +
emersed +  and submersed +
glabrous +  and sparsely pubescent +
bracteolate +  and branching +