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Linum trigynum

L. (1753)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Malpighiales Family: Linaceae Genus: Linum

Description

Key Characters:

Growth Form: Annual herbs.

Stems: Stems ascending to erect, 10–45 cm long, inconspicuously pubescent at least toward base.

Roots:

Leaves: Leaves simple. Alternate. Blades linear to linear–spatulate, 5–9 mm long, 0.6–1.8(–2) mm wide. Apex acuminate or sometimes acute. Surfaces glabrous. Margins revolute and minutely serrulate. Sessile.

Flowers: Flowers in helicoid cymes. Flowers bisexual (perfect), actinomorphic. Sepals narrowly ovate to lanceolate, 3–4 mm long, margins glandular ciliate, apex long–acuminate. Petals pale yellow, obovate, 4–5(–6) mm long, apex with a small median tooth, distinct. Stamens connate at base; anthers dithecal, opening by longitudinal slits. Ovary superior, flowers homostylous; ovary superior, placentation axile; ovules 2 per carpel, pendulous, anatropous; stigmas terminal and linear-clavate.

Fruit: Capsules depressed–globose; 1.8–2.1 mm long; with an apical beak ca. 0.2–0.3 mm long. Seeds flat.

Ploidy: 2n = 20

Habitat: naturalized on dry ridges; ʻOhikilolo Ridge and Mokuleʻia Valley; Waiʻanae Mountains; Oʻahu.

Elevation Range: 300–600 m.

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

O'ahu Naturalized

Dispersal Agents


Pollinators

Specimens

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Bibliography

Name Published In: Sp. Pl.: 279 (1753)

Other References

Wagner et al. 1990:850 (O)

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Linum trigynum L. mokuleia, slopes of kaala PRESERVED_SPECIMEN forbes, c.n. collector number: 1785.o Oahu BISH 4/26/1912
2 Linum trigynum L. mokuleia, slopes of kaala PRESERVED_SPECIMEN c. n. forbes 1785.o. Oahu US 4/26/1912
3 Linum trigynum L. mokuleia mauka PRESERVED_SPECIMEN o. degener, murashige & saiki 19587 Oahu US 5/2/1949
4 Linum trigynum L. Mokuleia, slopes of Kaala PRESERVED_SPECIMEN Forbes, C. N. 1785.O. Oahu US 1912-00-00
5 Linum trigynum L. schofield barracks, exp. sta. plots. PRESERVED_SPECIMEN a. s. hitchcock 13961 Oahu US 7/7/1916
6 Linum trigynum L. Mokuleia mauka PRESERVED_SPECIMEN Degener, O.; Murashige; Saiki 19587 Oahu US 5/2/1949
7 Linum trigynum L. Schofield Barracks, Exp. Sta. plots. PRESERVED_SPECIMEN Hitchcock, A. S. 13961 Oahu US 7/7/2016
8 Linum trigynum L. Ohikilolo ridge, Waianae Mts. PRESERVED_SPECIMEN Herbst, D. R. s.n. Oahu US 1976-00-00
9 Linum trigynum L. ohikilolo ridge, waianae mts. PRESERVED_SPECIMEN d. r. herbst s.n. Oahu US 3/7/1976
10 Linum trigynum L. waianae mtns, ohikilolo ridge crest in dry, hot, exposed areas PRESERVED_SPECIMEN herbst, d.r. collector number: 5329 Oahu BISH 5/25/1975
11 Linum trigynum L. Mokuleia, slopes of Kaala PRESERVED_SPECIMEN Forbes, C.N. 1785.O Oahu BISH 4/26/1912
12 Linum trigynum L. waianae mtns, ohikilolo PRESERVED_SPECIMEN nagata, k.m. hall, j. collector number: 3207 BISH 3/17/1985
13 Linum trigynum L. Kaluakauila, along fenceline. Growing with Schinus terebinthifolius, Melinus minutiflora. PRESERVED_SPECIMEN Long, E. USARMY 418 Oahu BISH 2/17/2016
14 Linum trigynum L. Waianae District, Waianae Mtns, Ohikilolo Mesic, sunny sites; ridgecrest; locally common. PRESERVED_SPECIMEN Nagata, K.M. 3207 Oahu BISH 3/17/1985
15 Linum trigynum L. Waianae Mtns, Ohikilolo ridge crest in dry, hot, exposed areas PRESERVED_SPECIMEN Herbst, D.R. 5329 Oahu BISH 5/25/1975
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