Flora of North America species comparison

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Sagittaria papillosa

nipplebract arrowhead
Habit Herbs, perennial, to 112 cm; rhizomes not coarse; stolons absent; corms absent.
Leaves

submersed and emergent;

petiole triangular, 11.5–35 cm;

blade elliptic to ovate, 25–56 cm.
Inflorescences

racemes or panicles, of 4–10 whorls, emersed, 8–25 × 5–36 cm;

peduncles to 76 cm;

bracts connate ¼ total length, lanceolate, 4–8 mm, papillose; fruiting pedicels ascending to spreading, cylindric, 1–4.5 cm.
Flowers

to 3 cm diam.;

sepals appressed to spreading;

filaments slightly dilated, shorter than anthers, glabrous;

pistillate pedicellate, without ring of sterile stamens.
Fruiting

heads 0.7–1 cm diam.;

achenes obovoid, abaxially keeled, 1.2–1.5 × 0.7–1.1 mm, beaked;

faces not tuberculate, wings 1, ± entire, glands 0–1;

beak lateral, erect, 0.1–0.3 mm.

Sagittaria papillosa
Phenology Flowering spring–fall.
Habitat Swamps, marshes, bogs, ditches, borders of lakes
Elevation 0–300 m (0–1000 ft)
Distribution
from FNA
AR; LA; OK; TX
[BONAP county map]
Source FNA vol. 22.
Parent taxa Alismataceae > Sagittaria
Sibling taxa
S. ambigua, S. australis, S. brevirostra, S. cristata, S. cuneata, S. demersa, S. engelmanniana, S. fasciculata, S. filiformis, S. graminea, S. guayanensis, S. isoetiformis, S. kurziana, S. lancifolia, S. latifolia, S. longiloba, S. montevidensis, S. platyphylla, S. rigida, S. sanfordii, S. secundifolia, S. subulata, S. teres
Name authority Buchenau: Index Crit. Butom. Alism. Juncagin. 27, 44. (1868)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

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