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Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Plantaginaceae||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Annual to perennial herb, generally scapose. Stem: decumbent to erect. Leaf: generally basal, veins generally +- parallel. Inflorescence: spike, generally dense; flowers few to many, cleistogamous or opening (both). Flower: generally bisexual; calyx deeply 4-lobed, lobes generally overlapped, persistent, margin generally scarious; corolla radial or bilateral, salverform or cylindric, scarious, persistent in fruit, colorless except for lobe midribs or not, lobes 4, spreading to erect; stamens generally 4; ovules several per chamber, stigma long, hairy. Fruit: circumscissile +- at or proximal to middle. Seed: 2--many, gelatinous when wetted.
Species In Genus: +- 250 species: worldwide, especially temperate; some weedy, some (especially Plantago afra L., psyllium) cultivated for laxative. Etymology: (Latin: sole of foot) Note: Plantago sempervirens Crantz, Plantago heterophylla Nutt., reported but not documented, possibly naturalized in California.
Unabridged Note: 2 species reported but not documented for California: Plantago sempervirens Crantz, native to southern Europe, Turkey, differs from Plantago arenaria in, e.g., habit (dwarf shrub vs annual), corolla tube (4--5 vs 3.5--4 mm), fruit (4--5 vs +- 2 mm); Plantago heterophylla Nutt., native to southeastern North America, differs from Plantago elongata in, e.g., seed number, size [10--25(30), 0.5--0.8 mm vs (3)4--9(12), 1.5--2.5 mm], corolla lobe orientation (generally spreading vs generally 1 erect, 3 spreading or reflexed).
eFlora Treatment Author: Thomas J. Rosatti
Jepson Online Interchange
Key to PlantagoPrevious taxon: Penstemon venustus
Next taxon: Plantago arenaria
Citation for this treatment: Thomas J. Rosatti 2017. Plantago, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=9825, accessed on January 22, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on January 22, 2017.