Rosa species - Dog-rose

Dog-roses are interesting to study. They hybridise readily and a hybrid from the same parents may appear different depending on whether which parent was male and female!

To identify you generally need hips, leaves and several stems with thorns.

Rosa canina s.s. - Dog-rose

Rosa dumalis (Previously R. caesia x canina = R. x dumalis)

Rosa caesia subsp. vosagiaca (Previously R. caesia subsp. vosagiaca) - Glaucous Northern Dog-rose

Rosa sherardii - Sherard’s Downy Rose

Rosa spinosissima (= Rosa pimpinellifolia) - Burnet Rose

Rosa mollis - Soft Downy-rose

The main features of this rose are:

Straight thorns.

The sepals on top of the hips are erect.

There are glandular hairs on the hip and leaf stalks.

The undersurface of the leaves has a fine coating of dense hairs.

Rosa rugosa - Japanese Rose

This distinctive rose is usually planted but does become established and spreads especially in dunes.

It has dense straight prickles of widely varying sizes .The smallest of which can be tipped with glands.

The leaves are dark, crinkly and white below. They have rounded blunt serrations.

The flowers are a distinctive purplish-pink and sometimes are white in cultivars.

The hips are large compressed spheres with erect sepals and their stalks are bent so that the hips point downwards.

There are glandular hairs on stalks of hips and leaves and they can also be finely hairy.

When compared to other similar roses this species is more upright and erect. Rosa caesia subsp. vosagiaca NS6638 26Aug2017 PW

The hips have spreading spreading sepals. Recurved sepals would have suggested canina. There are no glands on the hips: glands would have suggested mollis , however the few glands on pedicle may suggest some mollis in the mix. Later the h

No glandular hairs. The bracts are also prominent. The sepals will drop off as the hip ripens. Rosa caesia subsp. vosagiaca NS6638 26Aug2017 PW

The leaves are hairless and glaucous below. They are also folded which is a feature of this subspecies. Rosa caesia subsp. vosagiaca NS6638 26Aug2017 PW

Prickles are broad based and strongly curved. Rosa caesia subsp. vosagiaca NS6638 26Aug2017 PW

Rosa caesia x canina = R. x dumalis NS6739 26Aug2017 PW

Rosa caesia x canina = R. x dumalis NS6739 26Aug2017

Rosa spinosissima NS 536 646 23Aug2018 PW - 3

Rosa spinosissima NS 536 646 23Aug2018 PW