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|Jepson eFlora: Taxon page
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|Family: Campanulaceae||View Description||Dichotomous Key|
|Genus: Howellia||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Howellia aquatilis A. Gray
Habit: Annual, aquatic, rooted, glabrous. Stem: submersed, ascending to erect, or floating; 10--60 cm. Leaf: alternate (sometimes +- opposite or whorled), cauline, linear, entire or minutely toothed, sessile. Inflorescence: flowers 1 in leaf or bract axils, scattered; pedicels stout, 1--4(8) mm; bract 1 per flower. Flower: inverted; sepals 1/6--2/5 ovary, narrowly triangular; corolla white, 0 in lower flowers or not, tube 2--2.7 mm, narrowly cylindric, split adaxially +- to base, +- 2-lipped, 2 adaxial lobes +- 1--1.3 mm, narrowly strap-shaped, spreading, 3 abaxial lobes +- 1--1.3 mm; stamens fused into tube, anthers 0.2--0.9 mm, 2 shorter anthers minutely appendaged; ovary inferior, 5--13 mm, ellipsoid, stigma head-like. Fruit: 5--13 mm, 1--2 mm diam, ellipsoid, 1-chambered, depressed-conic at top, open on sides by slits or irregular tears. Seed: 2--4 mm, cylindric, shiny, chestnut-brown.
Ecology: Seasonal ponds; Elevation: 1100--1500 m. Bioregional Distribution: NCoRH; Distribution Outside California: to Washington, Montana. Flowering Time: Jun--Aug
eFlora Treatment Author: Nancy R. Morin
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Howellia
Next taxon: Legenere
Citation for this treatment: Nancy R. Morin 2017. Howellia aquatilis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=28520, accessed on April 25, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on April 25, 2017.