'R. xanthina spontanea' Rose

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'R. xanthina spontanea' rose Description

My HMF:

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'<i>Rosa xanthina</i> f. <i>normalis</i> Rehder & E.H. Wilson' rose photo

Photo courtesy of a_carl76

Availability:

Commercially available

Synonyms:

• Rosa xanthina f. normalis Rehder & E.H. Wilson
• Rosa xanthina f. spontanea Rehder synonym

HMF Ratings:

9 favorite votes.

ARS:

Species.

Origin:

Discovered by Frank N. Meyer (1909).

Class:

Species / Wild.

Bloom:

Deep yellow. 5 petals. Average diameter 2". Medium, single (4-8 petals), borne mostly solitary bloom form. Once-blooming spring or summer.

Habit:

Arching, bushy, upright. Small, semi-glossy, medium green foliage. 7 to 13 leaflets.

Height: 8'2" to 9'10" (250 to 300cm).

Growing:

USDA zone 6b and warmer.

Breeder's notes:

China

Patents:

Patent status unknown (to HelpMeFind).

Parentage:

If you know the parentage of this rose, or other details, please contact us.

Notes:

The roses pictured here should not be 'Canary Bird.' Rosa xanthina f. normalis Rehder & E.H. Wilson is the accepted name. Rosa xanthina f. spontanea Rehder is a synonym. Both are names for the single-flowered form of the species that was introduced to American and European gardens by seed collected in 1907.

To complicate matters, Modern Roses 12 lists R. xanthina spontanea as a synonym of 'Canary Bird.' 'Canary Bird' is a seedling of unknown parentage, at most a selection of the species but more likely a hybrid, because it was introduced in 1911, before R. xanthina was known to have flowered in 1915 in an American botanical garden.

This species belongs to the Pimpinellifoliae section (styles free, shorter than the stamens, blooms solitary, without bracts). It has simply serrated leaflets that are not glandular beneath, like R. hugonis. The margins are obtusely serrate. The canes should have no bristles.