Jepson eFlora: Key page    
    Vascular Plants of California
Key to families | Table of families and genera

Key to Lonicera

View taxon page for Lonicera

(For a list of species in Lonicera, use the above link.)

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Flowers paired on axillary peduncles; plants twining or erect

2. Corolla > 25 mm; plant twining ..... L. japonica

2' Corolla < 20 mm; plant erect

3. Ovaries of flower pair fused or appearing so

4. Corolla ± yellow, weakly 2-lipped; bracts 1–3 pairs, narrowly lanceolate; ovaries, fruit tightly enclosed by inner, fused bracts, thereby appearing fully fused ..... L. cauriana

4' Corolla dark red, strongly 2-lipped; bracts 0 or minute; ovaries, fruits not enclosed by bracts, fused generally > 1/2 ..... L. conjugialis

3' Ovaries of flower pair free

5. Bracts not leaf-like, not forming involucre, not enveloping ovaries ..... L. tatarica

5' Bracts leaf-like, forming a conspicuous involucre, ± enveloping ovaries ..... L. involucrata

6. Plant 6–9 dm; corolla yellow, tube ± wider upward; stigma exserted; Klamath Ranges, High North Coast Ranges, High Cascade Range, Sierra Nevada, Modoc Plateau ..... var. involucrata

6' Plant 15–36 dm; corolla yellow, strongly tinged orange or red, tube cylindric; stigma included or ± exserted; North Coast, High North Coast Ranges, Inner North Coast Ranges, Central Coast ..... var. ledebourii

1' Flowers in ± interrupted spikes on axillary peduncles or at ends of branches; plants twining or trailing (except Lonicera interrupta)

7. Leaf 5–10 cm; corolla 15–50 mm; inflorescence a dense, short spike; upper leaf pair fused around stem; Northwestern California, Cascade Range

8. Corolla orange, weakly 2-lipped; stamens, style ± exserted ..... L. ciliosa

8' Corolla yellow-white tinged ± purple, strongly 2-lipped; stamens, style well exserted ..... [L. etrusca]

7' Leaf 1–8 cm; corolla generally < 15 mm; inflorescence a ± long, interrupted spike; upper leaf pair fused around stem or not; widespread

9. Upper leaf pairs fused around stem; corolla glabrous or not

10. Stipules ± conspicuous, at least near inflorescence; corolla glandular-hairy or hairy ..... L. hispidula

10' Stipules 0; corolla glabrous ..... L. interrupta

9' Upper leaf pairs not fused around stem; corolla often hairy ..... L. subspicata

11. Leaf < 2 × longer than wide; n High Sierra Nevada (Butte Co.), Tehachapi Mountain Area, Central Western California, Southwestern California ..... var. denudata

11' Leaf 3–4 × longer than wide; s Channel Islands (Santa Catalina Island), Western Transverse Ranges ..... var. subspicata


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [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].

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