Sagittaria montevidensis subsp. spongiosa
Memoirs of the New York Botanical Garden 9: 198. 1955.
Common names: Tidal arrowhead
Endemic
Basionym: Sagittaria calycina var. spongiosa Engelmann in A. Gray, Manual ed. 5, 493. 1867
Synonyms: Lophotocarpus spongiosus (J. G. Smith) Buchenau Sagittaria spatulata
Treatment appears in FNA Volume 22.
Herbs, annual, often stranded by low tide. Leaves emersed, sessile, phyllodial, lanceolate, or petiolate with blade spatulate, rarely sagittate. Inflorescences of 1–4 whorls, emersed; bracts connate. Flowers: pistillate with ring of sterile stamens; petals without purple spot at base. 2n = 22.
Phenology: Flowering summer–fall (Jul–Oct).
Habitat: Brackish to freshwater tidal mud flats and salt marshes
Elevation: 0–5 m
Distribution
N.B., Conn., Del., Maine, Md., Mass., N.H., N.J., N.Y., Pa.
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Sagittaria montevidensis subsp. spongiosa"
absent +
keeled;oblanceoloid +
0.7mm;1.5mm +
2-loculed +
dehiscing +
absent +
attenuate;hastate or sagittate +
horizontal +
lateral +
spatulate +
less than ¼ total length +
delicate +
connate +
shorter +
recurved +
not papillose +
Tidal arrowhead +
absent +
u--shaped +
absent +
not tuberculate +
pistillate +
longer +
glabrous +
cylindric +
pistillate +
hypogynous +
distal +
enclosing +
unisexual +
absent +
enclosing +
whorled +
emersed +
curved +
absent +
sheathing +
emersed +
basal +
absent +
sagittate;lanceolate +
longer +
translucent +
absent +
scapose +
whorled +
1.5cm;28cm +
erect +
starlike +
entire +
purple spot +
deciduous +
delicate +
triangular +
1-loculed +
distinct +
basal +
absent +
0;1500 +
parallel +
Memoirs of the New York Botanical Garden +
1955 +
scapose +
whorled +
erect +
convex +
equal +
absent +
longitudinal +
pedicellate +
septate +
milky +
mature +
persistent +
erect;spreading +
sculptured +
herbaceous;leathery +
Endemic +
distinct +
absent +
7;30 +
sterile +
absent +
terminal +
Sagittaria montevidensis subsp. spongiosa +
Sagittaria montevidensis +
subspecies +
low +
white;brown +
floating-leaved +
stranded +
annual +
1;4 +
absent +