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Vascular Plants of California
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Bacopa eisenii


Higher Taxonomy
Family: PlantaginaceaeView DescriptionDichotomous Key
Common Name: PLANTAIN FAMILY
Habit: Annual to shrub, some aquatic. Leaf: basal or cauline, alternate or opposite (whorled), simple, entire to dentate or lobed, venation generally pinnate; stipules 0. Inflorescence: raceme, spike, or flowers axillary in 1--few-flowered clusters; flowers few to many, each subtended by 1 bract. Flower: unisexual or bisexual, radial or bilateral; sepals 4--5, generally fused at base; corolla 4--5-lobed, scarious or not, persistent or not, generally 2-lipped, upper lip generally 2-lobed, lower generally 3-lobed, spur present or not, tube sac-like at base or not; stamens 2 or 4, alternate corolla lobes, epipetalous, staminode 0 or 1--2, anthers opening by 2 slits; ovary superior, [1]2--4-chambered, style 1, stigma lobes 0 or 2. Fruit: generally a capsule, septicidal, loculicidal, circumscissile, or dehiscing by terminal slits or pores.
Genera In Family: 110 genera, +- 2000 species: worldwide, especially temperate. Note: Veronicaceae sensu Olmstead et al. Recently treated to include Callitrichaceae, Hippuridaceae, and most non-parasitic California genera of Scrophulariaceae (except Buddleja, Diplacus, Erythranthe, Limosella, Lindernia, Mimetanthe, Mimulus, Myoporum, Scrophularia, Verbascum). California Maurandya moved to Holmgrenanthe and Maurandella. Limnophila ×ludoviciana Thieret an occasional agricultural weed in rice fields. Hebe ×franciscana (Eastw.) Souster, Hebe speciosa (R. Cunn.) Andersen only cultivated.
eFlora Treatment Author: Margriet Wetherwax, except as noted
Scientific Editor: Robert Patterson, Bruce G. Baldwin.
Genus: BacopaView DescriptionDichotomous Key


Common Name: WATER-HYSSOP
Habit: Annual, +- perennial herb, aquatic or subaquatic. Stem: prostrate to ascending, or floating, generally < 6 dm. Leaf: cauline, opposite, generally < 40 mm, generally narrowly +- obovate to +- round, +- entire. Inflorescence: flowers 1--3 per leaf axil, sessile or pedicelled. Flower: sepals (4)5, unequal; corolla 5-lobed, generally white to pink or blue, throat yellow, occasionally with white; stamens 4; ovary subtended by nectary, stigma weakly 2-lobed. Fruit: loculicidal or septicidal, spheric. Seed: > 30, 0.1--0.3 mm, evenly sculptured with rectangular pits.
Species In Genus: +- 100 species: tropics, warm temperate. Etymology: (Presumed to be aboriginal name) Note: Bacopa repens (Sw.) Wettst. an historical weed in rice fields, last reported in 1976. Some flowers cleistogamous.
eFlora Treatment Author: Kim R. Kersh & John L. Strother
Reference: Barrett & Strother 1978 Syst Bot 3:408--419
Bacopa eisenii (Kellogg) Pennell
NATIVE
Leaf: 12--34 mm, obovate to +- round; veins > 6, palmate. Inflorescence: pedicel 15--51 mm, generally >> leaf, stout; bractlets 0. Flower: outer sepals 4.3--6.6 mm, widely ovate to +- round; corolla 10--14 mm, white with yellow in tube/throat; anthers 1.8--2.8 mm, notably exserted. Chromosomes: 2n=56.
Ecology: Muddy places, rice fields; wet soil or rooted and floating in shallow water; Elevation: < 100 m (< 1200 in SNE). Bioregional Distribution: GV (apparently introduced with rice culture ScV), SNE; Distribution Outside California: Nevada. Flowering Time: May--Oct
Jepson eFlora Author: Kim R. Kersh & John L. Strother
Reference: Barrett & Strother 1978 Syst Bot 3:408--419
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Botanical illustration including Bacopa eisenii

botanical illustration including Bacopa eisenii

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Citation for this treatment: Kim R. Kersh & John L. Strother 2012, Bacopa eisenii, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=15385, accessed on December 12, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on December 12, 2019.

Bacopa eisenii
click for enlargement
© 2007 John Game
Bacopa eisenii
click for enlargement
© 2007 John Game
Bacopa eisenii
click for enlargement
© 2007 John Game

More photos of Bacopa eisenii in CalPhotos



Geographic subdivisions for Bacopa eisenii:
GV (apparently introduced with rice culture ScV), SNE
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Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.