Compilation
Parrya nudicaulis

36 Images see all

Previous
Next

Name

Identification
Parrya macrocarpa R.Br. [family BRASSICACEAE ] Parrya nudicaulis (L.) Regel [family BRASSICACEAE ] (stored under name);
Related name
  • Cardamine nudicaulis
  • Parrya scapigera
  • Parrya macrocarpa
  • Neuroloma scapigerum
  • Arabis grandiflora
  • Neuroloma griffithii
  • Parrya nudicaulis

Flora

Entry for Parrya nudicaulis (Linnaeus) Regel [family CRUCIFERAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 7,
Names
Parrya nudicaulis (Linnaeus) Regel [family CRUCIFERAE], Bull. Soc. Imp. Naturalistes Moscou, 34: 176. 1861
Cardamine nudicaulis Linnaeus [family CRUCIFERAE], Sp. Pl., 2: 654. 1753
Achoriphragma nudicaule (Linnaeus) Soják [family CRUCIFERAE]
Arabis nudicaulis (Linnaeus) de Candolle [family CRUCIFERAE]
Cardamine articulata Pursh [family CRUCIFERAE]
Matthiola nudicaulis (Linnaeus) Trautvetter [family ]
Neuroloma nudicaule (Linnaeus) Andrzejowski ex de Candolle [family ]
Parrya macrocarpa R. Brown [family CRUCIFERAE]
Parrya nudicaulis var. grandiflora Hultén [family CRUCIFERAE]
Parrya nudicaulis subsp. interior Hultén [family CRUCIFERAE]
Parrya nudicaulis var. interior (Hultén) B. Boivin [family CRUCIFERAE]
Parrya nudicaulis subsp. septentrionalis Hultén [family CRUCIFERAE]
Treatment Author(s)
Ihsan A. Al-Shehbaz
Information
Plants often not cespitose, caudex branched; glandular throughout or eglandular. Stems (0.4–)0.7–2.7(–3.5) dm. Leaves: petiole (0.7–)1.5–7(–10) cm, to 5 mm wide at base (glandular or not); blade narrowly spatulate or oblanceolate to lanceolate or oblong, (1–)1.7–7 cm × (6–)10–23(–28) mm, base cuneate or attenuate, margins entire or minutely to coarsely dentate, or sometimes incised, apex acute. Racemes 3–20-flowered. Fruiting pedicels (proximalmost) (10–)15–40(–60) mm (glandular or not). Flowers: sepals oblong, 5–8 × 1.5–3 mm (glandular or not); petals lavender to white, purple, (14–)16–20(–22) × 7–10(–12) mm, claw 6–10 mm, apex emarginate; median filaments 6–10 mm; anthers 1.5–2.5 mm. Fruits narrowly oblong to linear-lanceolate, (2–)3–4(–4.7) cm × (3.5–)5–7 mm; valves glandular or eglandular; ovules 12–16 per ovary; style (0.5–)1–2.5(–3.5) mm. Seeds 3.5–6 × 3–5 mm; wing 0.7–1.5 mm wide. 2n = 14, 28.
Phenology
jun-aug (summer)
Altitude range
0–1800 m;
Distribution
e Asia (Russian Far East).USA AlaskaCanada B.C.Canada N.W.T.Canada Yukon
Discussion
Parrya nudicaulis is the most variable species in the genus, especially in leaf shape, size, and margin, as well as in the presence versus absence of the extrafloral glands. Much of the confusion about its limits resulted from different emphases on various characters. For example, E. Hultén (1971), who recognized six subspecies, expanded the range of P. nudicaulis to extend from the Canadian arctic and Alaska into the Russian Far East, Siberia, Central Asia, China, and the Himalayas. Three of his four North American subspecies, sometimes growing together, are rather poorly defined morphologically and appear to have been based primarily on the degree of development of leaf teeth. By contrast, R. C. Rollins (1993) recognized a single polymorphic species that included the Utah-Wyoming endemic P. rydbergii. Within a given population of P. nudicaulis, one finds both glandular and eglandular plants with leaf margins entire or variously dentate. In my opinion, these variables alone are unreliable, and flower size, in combination with other characters, can give a better indication of taxon identity.

Related Materials