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|Family: Cyperaceae||View Description||Dichotomous Key|
|Genus: Bolboschoenus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Bolboschoenus maritimus (L.) Palla subsp. paludosus (A. Nelson) T. Koyama
Habit: Plant <= 150 cm. Stem: (1)3--8 mm diam. Leaf: sheath tip generally with acutely triangular, membranous, veinless area; widest blade 2--12 mm wide. Inflorescence: proximal inflorescence bract 2--12 mm wide; spikelets (1)2--40, <= 1/2 on branches, 7--40 mm, 4--10 mm wide; flower bracts 5--8 mm, membranous, transparent, awn 1--3 mm, base 0.25 mm wide. Flower: perianth bristles not attached to (or a few loosely attached), <= 1/2 fruit; anthers yellow; stigmas 2. Fruit: 2.3--4.1 mm, 1.9--2.8 mm wide, 2-sided, floating on water; mucro 0.1--0.4 mm; wall cells large, hollow.
Ecology: Common in California. Brackish to saline coastal, inland marshes, shores; Elevation: < 2900 m. Bioregional Distribution: CA (exc CaR, SN); Distribution Outside California: to Alaska, Nova Scotia, Texas, temperate South America; Eurasia, Africa, Hawaii. Flowering Time: Summer Note: Scirpus maritimus L. treated in TJM (1993) without infraspecific taxa, with Scirpus maritimus var. paludosus (A. Nelson) Kük. as a synonym.
Synonyms: Scirpus paludosus A. Nelson; Scirpus maritimus L., in part; Scirpus maritimus var. paludosus (A. Nelson) Kük.; Scirpus pacificus Britton ex Parish; Scirpus campestris Britton, illeg.
Unabridged Note: In Pacific North America, Bolboschoenus maritimus was long erroneously called Bolboschoenus robustus. Bolboschoenus maritimus subsp. maritimus, characterized by stigmas generally 3, fruit generally 3-sided, is known only from Eurasia and northern Atlantic Coast of North America. Hybrids including Bolboschoenus maritimus subsp. paludosus × Bolboschoenus robustus (locally common. CCo, SnFrB, SCo [Atlantic coastal North America]), and Bolboschoenus glaucus × Bolboschoenus maritimus subsp. paludosus (forming hybrid swarms. GV; Idaho).
eFlora Treatment Author: S. Galen Smith
Jepson Online Interchange
Previous taxon: Bolboschoenus glaucus
Next taxon: Bolboschoenus robustus
Citation for this treatment: S. Galen Smith 2017. Bolboschoenus maritimus subsp. paludosus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=49436, accessed on April 27, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on April 27, 2017.