Jepson eFlora: Taxon page
Vascular Plants of California
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Ottelia

Higher Taxonomy
Family: HydrocharitaceaeView DescriptionDichotomous Key

Common Name: WATERWEED FAMILY
Habit: Annual, perennial herb, aquatic, freshwater or marine, glabrous or hairy; monoecious, dioecious, or flowers bisexual. Leaf: basal, alternate, opposite, or whorled, generally sessile, generally +- sheathing at base. Inflorescence: axillary, terminal, or scapose, cyme or flowers 1, subtended by +- sheathing, entire or lobed bract; staminate flowers sometimes deciduous, free-floating. Flower: generally radial; perianth 0 or tube 0 or elongate, peduncle-like in flower; sepals (0)3(4), green; petals (0)3(4), white or not; stamens (0)2--many, generally in 1+ series; ovary inferior, chamber 1 or falsely 6--9, placentas parietal, ovules 1--many, style lobes generally 3, linear, lobed or notched. Fruit: achene or berry-like and dehiscing irregularly, linear to spheric, submersed.
Genera In Family: +- 17 genera, +- 130 species: worldwide; some cultivated for aquaria, others noxious weeds. Note: Ottelia alismoides (L.) Pers. is a possibly extirpated alien.
eFlora Treatment Author: Robert F. Thorne, C. Barre Hellquist & Robert R. Haynes
Scientific Editor: Thomas J. Rosatti.
Ottelia
Habit: Annual, perennial herb, submersed to emergent, rooted in mud. Stem: generally short, erect. Leaf: basal, petioled, alternate. Inflorescence: terminal; flowers 1, emergent; bract +- enclosing flower, ribbed or winged, persistent in fruit. Flower: bisexual, emergent, fragrant; sepals 3; petals 3; stamens 3, staminodes >= 6; ovary oblong, stigmas 6--9, linear, deeply 2-lobed to me. Fruit: 15--40 mm, oblong, irregularly dehiscent, generally ribbed. Seed: several.
Species In Genus: +- 21 species: tropics, warm temperate Eurasia. Etymology: (Malay: to stick to, from leaves)
Jepson eFlora Author: Robert F. Thorne, C. Barre Hellquist & Robert R. Haynes
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Najas marina
Next taxon: Ottelia alismoides

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Citation for this treatment: Robert F. Thorne, C. Barre Hellquist & Robert R. Haynes 2012, Ottelia, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=9641, accessed on April 16, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 16, 2024.