Overview

Distribution

National Distribution

Canada

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Man., N.B., N.S., Ont., Que.; Ala., Ark., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., N.H., N.J., N.Y., N.C., N.Dak., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Vt., Va., W.Va., Wis.
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Physical Description

Morphology

Description

Rhizomes elongate, slender, 10–15 cm, bearing scattered, fibrous roots; stolons present. Stem 1, 1-branched, angled distally, 1–4.5 dm, nodes glabrous, bearing 1–2 leaves below lowest branch. Leaf blades sessile, narrowly to broadly elliptic, 4–6.5(–8) × (1.3–)1.6–2.8(–4) cm, glabrous abaxially, margins minutely denticulate, apex acute to acuminate. Flowers 1 per stem; peduncles 0.6–1.6 cm, ebracteate; tepals pale straw-yellow, 13–25 × 2–4.5 mm, smooth abaxially, apex rounded to acute; stamens 8–15 mm; anthers 5–12 mm; connectives 0.3–0.5 mm; ovary stipitate, sharply triangular, flowering stipe 0.8–1.2 mm; style 10–15 mm; stigma lobes 1–2 mm. Capsules sharply 3-winged, stipitate, ellipsoid, 2–3 × 1–1.6 cm, not beaked; fruiting stipe 2–5 mm. Seeds 3–5 mm; arils crested. 2n = 14.
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Diagnostic Description

Synonym

Oakesia sessilifolia (Linnaeus) S. Watson; Oakesiella sessilifolia (Linnaeus) Small
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Ecology

Habitat

Moist hardwood coves, alluvial bottomlands, thickets and xeric woods northwards; 0--1000m.
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Associations

Flower-Visiting Insects of Sessile-Leaved Bellwort in Illinois

Uvularia sessilifolia (Sessile-Leaved Bellwort)
(insect activity is unspecified, but both nectar and pollen are available from the flowers; observations are from Motten)

Bees (short-tongued)
Halictidae (Halictinae): Lasioglossum macoupinensis (Mtt); Andrenidae (Andreninae): Andrena sp. (Mtt), Andrena nigrihirta fq (Mtt), Andrena tridens (Mtt)

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Life History and Behavior

Cyclicity

Flowering/Fruiting

Flowering spring--early summer.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Uvularia sessilifolia

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Uvularia sessilifolia

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 5
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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Wikipedia

Uvularia sessilifolia

Sessile bellwort or wild oats (Uvularia sessilifolia) is a species of bellwort native to eastern and central North America. It grows in woodlands with wet or dry soils.

The strap-like leaves are sessile on the stem. The flowers are yellow, narrowly bell-shaped, and creamy yellow, blooming in spring. The leaves have no hairs on the margin and are somewhat narrow, distinguishing this plant from the similar Streptopus. They spread asexually by means of long under ground stolons with most plants in a clonal colony not flowering.[2] Flowering plants often do not set seed, but when plants form seeds they are in three angled fruits.

The native range extends from the Atlantic Ocean from Florida to Nova Scotia, west to Texas, The Dakotas and Manitoba .[3][4][1]

References[edit]

  1. ^ a b Kew World Checklist of Selected Plant Families, Uvularia sessilifolia
  2. ^ KAZUHIKO HAYASHI, SEIJI YOSHIDA, HIDETOSHI KATO, FREDERICK H. UTECH, DENNIS F. WHIGHAM, SHOICHI KAWANOI (1998). "Molecular Systematics of the Genus Uvularia and Selected Liliales Based upon mat K and rbc L Gene Sequence Data". Plant Species Biology 13 (2-3): 129–146. doi:10.1111/j.1442-1984.1998.tb00254.x. 
  3. ^ "Uvularia sessilifolia L.". USDA PLANTS. 
  4. ^ Biota of North America Program, Uvularia sessilifolia


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