Contains 7 accepted taxa overall.
Characteristics
Classification
Citation
ROSA Linnaeus, Sp. Pl. 491. 1753, nom. cons.
-
TYPE: Rosa cinnamomea Linnaeus, typ. cons.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Rosa bracteata | MACARTNEY ROSE | Not Native UPL (NWPL) | ||
| Rosa carolina | CAROLINA ROSE | Native FACU (NWPL) | ||
| Rosa laevigata | CHEROKEE ROSE | Not Native | ||
| Rosa lucieae | MEMORIAL ROSE | Not Native | ||
| Rosa multiflora | MULTIFLORA ROSE | Not Native FACU (NWPL) | ||
| Rosa palustris | SWAMP ROSE | Native OBL (NWPL) OBL (DEP) | ||
| Rosa setigera | CLIMBING ROSE | Native FACU (NWPL) |
Identification Key
1. Leaflets 3(5) per leaf
2
1. Leaflets (3)5-9 per leaf
3
2. Stipules adnate to the petiole for ½ or less of its length; petiole eglandular; leaflet margins with shallow teeth <0.7 mm long; petals white (sect. Laevigatae)
2. Stipules adnate to the petiole for most of its length; petiole glandular-hispid; leaflet margins with pronounced teeth, some >0.7 mm long; petals pink (sect. Systylae)
3. Stipules pectinate, lacerate, or strongly toothed, persistent
4
3. Stipules entire or shallowly toothed, sometimes caducous
6
4. Stems tomentose, stipitate-glandular; stipules adnate to the petiole for ½ or less of its length; leaflets with shallow teeth, the terminal leaflet with a rounded apex
4. Stems glabrate to pubescent; stipules adnate to the petiole for most of its length; leaflets with conspicuous exserted teeth, the terminal leaflet usually with an acute or strongly toothed apex (sect. Systylae)
5
5. Leaflets glabrous on the lower surface; style pubescent
5. Leaflets pubescent to glabrate on the lower surface; style glabrous
6. Stipules adnate to the petiole for ½ or less of its length, sometimes caducous; petals white or yellow (sect. Banksiae)
6. Stipules adnate to the petiole for most of its length, persistent; petals variously colored, including white or yellow
7
7. Native, wild species (sect. Rosa)
8
7. Cultivated taxa (sect. Chinensis)
9
8. Mature shrub often <1 m tall; stem with the major prickles straight and nearly perpendicular to the stem, often with smaller straight prickles also; stipule auricles flared; margins of larger leaflets with 8-14(18) teeth per side; of upland sites
8. Mature shrub usually >1 m tall; stem with the major prickles recurved, lacking smaller straight prickles; stipule auricles erect, rarely flared; margins of larger leaflets with 16-30 teeth per side; of wetland areas
9. Petals more than 5 (flowers double or more); complex cultivated hybrids
9. Petals 5 (flowers single) wild-type
10
10. Shrub; stipules glandular-pubescent along margin; leaflets (3)5; flowers (1)4-5, slightly fragrant or not; sepals often pinnately lobed
10. Liana; stipules eglandular or only glandular at margin of free part; leaflets (3)5-9; flower 1-3, 5-10 cm wide, fragrant; sepals entire to slightly incised
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| Hulthemia | Hulthemia Dumortier, Not. Nouv. Genr. Hulthemia 12. 1824. | TYPE: Hulthemia berberifolia (Pallas) Dumortier, nom. illegit. (Rosa berberifolia Pallas, nom. illegit.; Rosa simplicifolia Salisbury) | |
| Lowea | Lowea Lindley, Edwards' Bot. Reg. 15: t. 1261. 1829. | TYPE: Lowea berberifolia (Pallas) Lindley, nom. illegit. (Rosa berberifolia Pallas, nom. illegit.; Rosa simplicifolia Salisbury) = Hulthemia Dumortier 1824. | |
| Rhodopsis | Rhodopsis (Endlicher) Reichenbach, Deut. Bot. Herb.-Buch 168. 1841, non Lilja 1840 (nom. rej.), nec Urban 1900 (nom. cons.). | BASIONYM: Rosa Linnaeus, sect. Rhodopsis Endlicher, Gen. Pl. 1241. 1840. | TYPE: Rosa sericea Lindley |