Directory       News       Site Map       Home
         
    Jepson eFlora
Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

GRATIOLA HEDGE-HYSSOP

Dwayne Estes


Annual; herbage glabrous proximally, glandular-puberulent distally; roots fibrous. Stem: erect to decumbent, < 30 cm, rounded to ± 4-angled. Leaf: cauline, opposite, sessile or ± clasping, subentire to dentate, palmately veined. Inflorescence: flowers 1 per leaf axil, pedicelled, bractlets present or 0. Flower: sepals 5, generally free; corolla 5-lobed, tube 4-angled, > lobes, ± purple-lined, upper lip 2-lobed or notched, lower 3-lobed; fertile stamens 2, anther sacs of each stamen separated, parallel; ovary subtended by nectary, stigma weakly 2-lobed. Fruit: septicidal and loculicidal, 4-valved, 3–6 mm, ovoid to spheric. Seed: many, 0.5–0.9 mm, coat net-like, ± brown.
± 25 species: temperate, tropical mountains, North America, Europe, Asia, Australia, South America. (Latin: grace or favor, from supposed medicinal quality) [Estes & Small 2008 Syst Bot 33:176–182]

Key to Gratiola

1. Pedicel bractlets 2, sepal-like; corolla 2–3 × calyx ..... G. neglecta

1' Pedicel bractlets 0; corolla < 2 × calyx

2. Leaf, sepal tips acuminate; sepals free, equal; stems with 6–12 leafy nodes; corolla throat ± yellow, limb white, ± pink-tinged ..... G. ebracteata

2' Leaf, sepal tips rounded to notched; sepals unequally fused at base, unequal; stems with 4–7 leafy nodes; corolla generally yellow (except lower 3 lobes white) ..... G. heterosepala

Contact/Feedback

Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.