Common Name: PONDWEED FAMILY Habit: Annual, perennial herb, aquatic, (generally fresh to alkaline), glabrous, from rhizomes, tubers, or winter buds. Stem: erect, simple to branched, cylindric to compressed, rooting at lower nodes; nodal glands present or not. Leaf: simple, cauline, alternate or in subopposite pairs; submersed thread-like to round, sessile or petioled; floating present or not, elliptic to ovate, petioled, leathery; sheath open, continuous with petiole or +- free from blade base, generally stipuled, stipules fused and ligule-like or not. Inflorescence: spike, cylindric to spheric, axillary or terminal, generally emergent, peduncled; bracts 0. Flower: inconspicuous, bisexual; perianth parts [0]4, clawed, +- green, limb generally adaxially concave; stamens [2]4, each fused to base of perianth part [or not], filament generally 0 [short, wide], anthers open to outside; pistils [1]4, ovary 1-chambered, ovule 1, attached to chamber base, style 0 or short. Fruit: drupe, generally obovate, sessile. Seed: 1. Genera In Family: 3 genera, +- 95 species: worldwide. Note: Recently treated elsewhere to include Zannichelliaceae. Ruppia moved to Ruppiaceae. eFlora Treatment Author: C. Barre Hellquist, Robert F. Thorne & Robert R. Haynes Scientific Editor: Thomas J. Rosatti.
NATIVE Habit: Rhizomed, tubers 0. Stem: < 60 cm, branches many, subcylindric, +- white. Leaf: 2--10 cm, (0.4)1.5--5(8.5) mm wide, linear, veins 3--5, tip with abrupt, medium-long to long point (rounded); stipules < 3 cm, sheaths not inflated. Inflorescence: axillary (terminal), interrupted below, 13--45 mm, whorls 4--9; peduncle 1.2--5.2 cm. Fruit: 3--3.9 mm, beak conspicuous. Ecology: Uncommon. Shallow, alkaline water, ponds, lakes; Elevation: < 1450 m. Bioregional Distribution: SN, GV, SnFrB, GB, DMoj; Distribution Outside California: to Oregon, Colorado, Texas, Mexico, Central America, South America. Flowering Time: Jul--Aug Note: May be locally abundant. Synonyms: Coleogeton striatus (Ruiz & Pav.) Les & R.R. Haynes; Potamogeton latifolius (J.W. Robbins) Morong Jepson eFlora Author: C. Barre Hellquist, Robert F. Thorne & Robert R. Haynes Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Listed on CNPS Rare Plant Inventory Previous taxon: Stuckenia pectinata Next taxon: Ruppiaceae
Botanical illustration including Stuckenia striata
Citation for this treatment: C. Barre Hellquist, Robert F. Thorne & Robert R. Haynes 2012, Stuckenia striata, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=80316, accessed on February 08, 2025.
Citation for the whole project: Jepson Flora Project (eds.) 2025, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on February 08, 2025.
No expert verified images found for Stuckenia striata.
Geographic subdivisions for Stuckenia striata:
SN, GV, SnFrB, GB, DMoj
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurrence).
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