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Magnoliopsida
Pseudognaphalium
EOL Text
Rounded Global Status Rank: G5 - Secure
Pseudognaphalium canescens (syn. Gnaphalium canescens) is a species of flowering plant in the daisy family known by the common name Wright's cudweed. It is native to western North America from western Canada to northern Mexico. It can be found in many habitats, from mountains to plateau to coastline. The many-branched stem is erect to a maximum height of around a meter. It is gray-green and woolly with many narrow leaves. Atop the stem branches are inflorescences of several pointed oval-shaped pale yellowish, cream, or white flower heads. Each woolly head is a few millimeters across and contains many tiny flowers.
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| Rights holder/Author | Wikipedia |
| Source | http://en.wikipedia.org/w/index.php?title=Pseudognaphalium_canescens&oldid=559421769 |
Annuals or perennials, 20–70(–100+) cm; taprooted. Stems persistently tomentose, not glandular (2–3 mm diam. near bases). Leaf blades narrowly to broadly oblanceolate, mostly 2–4(–5) cm × 2–8(–15) mm, bases not clasping, not decurrent, margins flat, faces weakly bicolor, tomentose (adaxial less densely tomentose, sometimes sessile-glandular beneath tomentum). Heads usually in loose, corymbiform arrays. Involucres turbinate-campanulate, 4–5 mm. Phyllaries in 3–4 series, white (opaque to hyaline, dull to shiny), narrowly ovate-lanceolate, glabrous. Pistillate florets (16–)24–44. Bisexual florets (1–)2–5(–6), 5–6 more common in northern part of range. Cypselae ridged, weakly papillate-roughened. 2n = 28.
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| Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
| Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250067387 |
Gnaphalium canescens de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 228. 1838; G. sonorae I. M. Johnston; G. texanum I. M Johnston; G. viridulum I. M. Johnston; G. wrightii A. Gray
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| Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
| Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250067387 |
Isotype for Gnaphalium viridulum I.M. Johnst.
Catalog Number: US 495704
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): O. B. Metcalfe
Year Collected: 1903
Locality: Silver City, Bean Mountains., Grant, New Mexico, United States, North America
Elevation (m): 2438 to 2438
- Isotype: Johnston, I. M. 1924. Contr. Gray Herb. 70: 86.
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| Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
| Source | http://collections.mnh.si.edu/search/botany/?irn=2121207 |
Possible isotype for Gnaphalium texanum I.M. Johnst.
Catalog Number: US 142220
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): V. Havard
Year Collected: 1883
Locality: Mouth of Torlinga., Texas, United States, North America
- Possible isotype: Johnston, I. M. 1924. Contr. Gray Herb. 70: 86.
| License | http://creativecommons.org/licenses/by/3.0/ |
| Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
| Source | http://collections.mnh.si.edu/search/botany/?irn=2124674 |
Most plants of Pseudognaphalium canescens produce white, opaque, keeled, apiculate phyllaries; in the southern portion of its range (Jalisco southeastward) and scattered localities elsewhere, the phyllaries may be more hyaline and lack a pronounced keel and apiculum.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
| Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250067387 |
Annual, biennial or perennial herbs. Leaves alternate, lanceolate, linear-lanceolate or oblanceolate. Capitula heterogamous, in small clusters which are arranged in cymes or corymbs. Phyllaries in 3-4 series. Outer florets female in 2-many series, numerous, usually outnumbering the inner bisexual florets. Pappus of many scabrid bristles
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| Rights holder/Author | Mark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe |
| Source | http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=1496 |
Barcode of Life Data Systems (BOLD) Stats
Specimen Records:59
Specimens with Sequences:60
Specimens with Barcodes:28
Species:19
Species With Barcodes:18
Public Records:25
Public Species:10
Public BINs:0