Compilation
Potamogeton gemmiparus

8 Images see all

Previous
Next

Name

Identification
Potamogeton pusillus L. [family POTAMOGETONACEAE ] (stored under name); Verified by Not on Sheet, Isotype of Potamogeton gemmiparus (J.W.Robbins in A.Gray) J.W.Robbins ex Morong [family POTAMOGETONACEAE ] Verified by Haynes, R.R., 1973 Potamogeton pusillus L. [family POTAMOGETONACEAE ] Verified by Robbins, J.W.,
Related name
  • Potamogeton pusillus
  • Potamogeton gemmiparus
Common name
  • Potamot gemmipare, Flora of North America Vol. 22

Flora

Entry for Potamogeton pusillus subsp. gemmiparus (J. W. Robbins) R. R. Haynes & Hellquist [family POTAMOGETONACEAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 22,
Names
Potamogeton pusillus subsp. gemmiparus (J. W. Robbins) R. R. Haynes & Hellquist [family POTAMOGETONACEAE], Novon, 6: 370. 1996
Potamogeton pusillus Linnaeus var. gemmiparus J. W. Robbins [family POTAMOGETONACEAE], in A. Gray, Manual ed., 5, 489. 1867
Potamogeton gemmiparus (J. W. Robbins) Morong [family POTAMOGETONACEAE]
Information
Leaves: stipules convolute; blade 1.1--6 cm ´ 0.2--0.7 mm, apex subulate, lacunae present or absent, 0--2 rows on each side of midrib; veins 1. Inflorescences: peduncles 1--3 per plant, cylindric; spikes cylindric, continuous. Fruits obovoid, sides centrally concave; beak median.
Phenology
Flowering and fruiting summer--fall
Altitude range
0--100 m
Distribution
USA Conn.USA MaineUSA Mass.USA N.H.USA N.H.USA Vt.Canada Que.
Discussion
Potamogeton pusillus subsp. gemmiparus is an uncommon taxon that superficially resembles subsp. pusillus. It can be separated, however, by its continuous inflorescences, whereas those of subsp. pusillus are interrupted.

Related Materials