Contains 6 accepted taxa overall.
Characteristics
Classification
Citation
LINUM Linnaeus, Sp. Pl. 277. 1753.
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TYPE: Linum usitatissimum Linnaeus Lectotypified by Small, in Britton, N. Amer. Fl. 25: 67. 1907.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Linum floridanum var. chrysocarpum | Yellow-fruited Yellow Flax | |||
| Linum floridanum var. floridanum | Florida Yellow Flax | |||
| Linum intercursum | Bicknell's Yellow Flax | |||
| Linum striatum | Ridgestem Yellow Flax | |||
| Linum usitatissimum | Common Flax | |||
| Linum virginianum | Virginia Yellow Flax |
Identification Key
1. Sepals eglandular; corolla bluish, red, to pink; stigmas elongate and introrse
2
1. Sepals (at least the inner ones) with marginal glands; corolla yellow; stigmas terminal and capitate
3
2. Sepals 8-12 mm long; petals red (drying pinkish), 15-35 mm long
2. Sepals 5-9 mm long; petals blue to white, 8-12 mm long
3. Style solitary at the base, branching into 5 stigmas
4
3. Styles 5, not united at the base, each style with one stigma
6
4. Style branches ca. 1.5-3 mm long below each stigma, the styles connate ca. 0.5-2 mm at the base
4. Style branches to ca. 1 mm long below each stigma, the styles connate ca. 4-7 mm at the base
5
5. Plant (11)17-28(33) cm tall, branching throughout; stem puberulent or scabrous throughout; stipules glandular; petals 9-11 mm long, 7-9 mm wide; anthers placed near stigma; style 4.4-6.1 mm long
5. Plant (17)28-45(64) cm tall, branching in upper half; stem glabrous, otherwise puberulent or scabrous only near the base; stipules eglandular; petals 11.5-17 mm long, 10-13 mm wide; anthers divergent from stigma; style 5.1-9.1 mm long
6. Capsules 1.3–2.3 mm long, depressed-globose or globose, apices depressed
8
6. Capsules 2–3.9 mm long, either pyriform to ovoid or subglobose, apices short-pointed
9
7. Margins of inner sepals usually with conspicuous stipitate glands; capsule segments usually persistent
7. Margins of inner sepals eglandular or with inconspicuous sessile glands; capsule segments usually deciduous
8. Leaves mostly opposite until just below the inflorescence branches
8. Leaves alternate, or opposite only in the basal third or less and alternate distally on most of the stem
9
9. Stipular glands reddish; leaf blade 5-15 mm long, 0.5-1.2 mm wide; petals 4-6 mm long
9. Stipular glands absent; leaf blade 10-25 mm long, 1-4 mm wide; petals 5-11 mm long
10
10. Margins of inner sepals glandular-toothed; capsules 2–3.4 mm long; seeds 1.6–2.5 mm long
10. Margins of inner sepals entire; capsules 3.4–3.9 mm long; seeds 2.8–3 mm long
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| No synonyms found. | |||