Sparganium androcladum (Engelm.) Morong
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Typhaceae
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Scientific Name
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Description
Species Description - Stout, erect, 4–10 dm; lvs to 8 dm, 5–12 mm wide, some or all carinate or triangular in cross-section; bracteal lvs ascending; infl simple or sometimes branched; pistillate heads on the central axis 2–4, on the branches none or seldom 1 or 2, all sessile, 3 cm thick when ripe; tep spatulate, two-thirds as long as the achene; stipe 2–4 mm; achene-body shining, pale brown, ellipsoid-fusiform, 5.5–7 mm, slightly constricted, the beak straight, 4–6 mm; stigma 1.5–3 mm; staminate heads 3 or more on the branches, 5–8 on the central axis; anthers linear, 1–1.5 mm. Muddy shores and shallow water; Que. to Va.; O. to Minn. and Mo. (S. lucidum)