Jepson Herbarium
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Jepson eFlora: Taxon page
Vascular Plants of California
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Justicia

Higher Taxonomy
Family: AcanthaceaeView DescriptionDichotomous Key

Common Name: ACANTHUS FAMILY
Habit: [Annual, perennial herb to] shrub, [tree], nodes generally swollen. Leaf: simple, generally opposite, entire (toothed [lobed]); stipules 0. Inflorescence: variable, with bracts, generally also bractlets. Flower: bisexual; calyx deeply (3)4--5 lobed [(sepals free)]; corolla 4--5 lobed, radial to 2-lipped; stamens 2 or 4, epipetalous, anther sacs sometimes dissimilar in size or placement; ovary superior, 4--many-ovuled, chambers 1--2, placentas axile (free central), stigmas 1--2. Fruit: capsule, loculicidal, generally dehiscing explosively, valves 2. Seed: 1--4[+], each generally subtended by hook-like outgrowth that remains in fruit.
Genera In Family: 220 genera, 4000 species: especially tropics; some ornamental: Justicia (Beloperone, shrimp-plant), Acanthus, Thunbergia.
eFlora Treatment Author: Thomas F. Daniel, Margriet Wetherwax & Lawrence R. Heckard, except as noted
Scientific Editor: Thomas J. Rosatti.
Justicia
Habit: [Annual, perennial herb] shrub. Inflorescence: generally raceme [variable]. Flower: corolla 2-lipped, tube generally >= lips, wider upward, upper lip notched or 2-lobed, lower 3-lobed; stamens 2, generally appressed to upper lip, anther sacs unequally placed on filament, opening toward lower lip, lower sac spurred. Fruit: club-shaped; stalk +- flat. Seed: 4, outlined on fruit surface [or not].
Species In Genus: 400 species: tropics, subtropics. Etymology: (James Justice, Scottish horticulturist, 1698--1763)
Jepson eFlora Author: Thomas F. Daniel, Margriet Wetherwax & Lawrence R. Heckard
Reference: Graham 1988 Kew Bull 43:551--624
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Carlowrightia arizonica
Next taxon: Justicia californica

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Citation for this treatment: Thomas F. Daniel, Margriet Wetherwax & Lawrence R. Heckard 2012, Justicia, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=10682, accessed on January 25, 2025.

Citation for the whole project: Jepson Flora Project (eds.) 2025, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on January 25, 2025.