Common Name: TWIN FLOWER FAMILY Habit: Subshrub [to small tree]. Leaf: opposite, simple [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 4 inserted at 2 levels, epipetalous, alternate corolla lobes; ovary inferior, 1--5-chambered, style 1. Fruit: achene or capsule, 1-seeded. Genera In Family: 4 genera, 35 species: especially northern temperate. Note: Incl in Caprifoliaceae in TJM (1993), and possibly in future. Unabridged Note: Incl in Caprifoliaceae in TJM (1993), and possibly in future according to the Angiosperm Phylogeny Website (http://www.mobot.org/MOBOT/Research/APweb/welcome.html), which states, in part, "The whole lot might usefully be combined in a Caprifoliaceae s.l. (see also APG 2003), since similarities between the families are considerable and differences are mostly slight." eFlora Treatment Author: Charles D. Bell, family description Scientific Editor: Thomas J. Rosatti.
Common Name: TWIN FLOWER Habit: Plant creeping, evergreen. Inflorescence: flowers generally 2 at forked tip of slender erect peduncle, nodding. Flower: calyx lobes slender, tapered; corolla bell- to funnel-shaped above slender tube; stamens 4, 2 shorter and inserted near corolla tube base; ovary chambers 3, 2 with aborting ovules, 1 with 1 developing ovule. Fruit: capsule, 3-valved. Etymology: (Named for Linnaeus, often depicted with a sample of this, one of his favorite plants) eFlora Treatment Author: Charles D. Bell & Lauramay T. Dempster
Linnaea borealis L. var. longiflora Torr.
NATIVE Stem: 15--20 cm, slender. Leaf: petiole +- 2 mm; blade 12--18 mm, ovate, serrate above middle. Inflorescence: peduncle +- 6 cm; inner bracts 2, < outer, straight-hairy; outer bracts 2, +- 1 mm, +- round, surrounding ovary, densely glandular-hairy. Flower: corolla 10--13 mm, hairy adaxially, white to pink. Ecology: Moist shady places in conifer forest; Elevation: 200--2600 m. Bioregional Distribution: NW, CaR, n SNH, MP; Distribution Outside California: to northern Alaska. Flowering Time: Jun--Aug Unabridged Synonyms: Linnaea borealis L. subsp. americana (Forbes) Hultén ex R.T. Clausen Jepson eFlora Author: Charles D. Bell & Lauramay T. Dempster Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Linnaea Next taxon: Loasaceae
Botanical illustration including Linnaea borealis var. longiflora
Citation for this treatment: Charles D. Bell & Lauramay T. Dempster 2012, Linnaea borealis var. longiflora, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=60893, accessed on January 21, 2025.
Citation for the whole project: Jepson Flora Project (eds.) 2025, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on January 21, 2025.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurrence).
MAP LEGEND View all CCH records All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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CCH collections by month
Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).
