Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.



Lauramay T. Dempster

Subshrub, shrub, vine, or small tree
Leaves opposite, simple or compound; stipules generally 0
Flower: calyx tube fused to ovary, limb generally 5-lobed; corolla radial or bilateral, rotate to cylindric, generally 5-lobed; stamens generally 5, epipetalous, alternate corolla lobes; ovary inferior, 1–5-chambered, style l
Fruit: berry, drupe, or capsule
Genera in family: ± 12 genera, 450 species: especially n temp
Recent taxonomic note: Recently treated to include Valerianaceae (and Dispaceae); Sambucus, Viburnum recently treated in Adoxaceae



Shrub, erect or twining
Leaves simple, entire, short-petioled; 1–2 pairs beneath inflorescence often fused around stem
Inflorescence: spikes, interrupted, at ends of branches, or flowers paired on axillary peduncles and subtended by 0–2 sets of bracts
Flower: calyx-limb 0 or generally 5-toothed, generally persistent; corolla 5-lobed, ± radial or strongly 2-lipped (4 upper lobes, 1 lower), tube pouched at base; ovary chambers 2–3
Fruit: berry, generally round
Species in genus: ± 200 species: temp, subtropical North America, Eur, Asia, n Africa
Etymology: (Adam Lonitzer, German herbalist, 16th century)
Reference: [Rehder 1903 Rep Missouri Bot Gard 14:27–231]
2 collections (Del Norte Co., Eldorado Co.) have purplish, apparently sterile, variously distorted flowers with long, slender ovary/hypanthium; probably alien (key 7.).


L. involucrata (Richardson) Banks


Shrub, erect, 6–30 dm; herbage with stalked glands, sparsely hairy
Leaf 3–12 cm; petiole 2–10 mm; blade elliptic to ovate, base rounded or tapered, tip acute to acuminate
Inflorescence: flowers paired; peduncles 12–32 mm, axillary, subtended by conspicuous involucre of 2 pairs of bracts; outer bracts opposite flowers, 7–12 mm, widely ovate, generally acute; inner bracts 4–8 mm, alternate flowers, deeply 2-lobed, truncate, densely glandular
Flower: calyx limb 0; corolla 12–18 mm, ± cylindric to narrowly bell-shaped, ± yellow, hairy, lobes ± 2 mm, subequal, slightly spreading; ovaries of a flower pair free
Fruit 6–10 mm, black, in enlarged, purple or red, spreading or reflexed involucre
Ecology: Moist places
Elevation: < 2900 m.
Bioregional distribution: North Coast, Sierra Nevada, Central Coast, Modoc Plateau
Distribution outside California: to Alaska, e N.America, Mexico


var. ledebourii (Eschsch.) Jeps.

Plant 15–36 dm
Leaf leathery; midribs often somewhat arched
Flower: corolla heavily tinged orange or red outside, tube cylindric; stamens generally included; stigma included or slightly exserted
Ecology: Moist coastal places
Elevation: < 1500 m.
Bioregional distribution: North Coast, Central Coast
Distribution outside California: s Oregon
Horticultural information: IRR or WET: 5, 6, 15, 16, 17, 24 &SHD: 7, 14, 19, 20, 21, 22, 23.

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bioregional map for LONICERA%20involucrata%20var.%20ledebourii being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Lonicera involucrata var. ledebourii
Retrieve dichotomous key for Lonicera
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
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