Home >> Science >> Biology >> Flora and Fauna >> Plantae >> Magnoliophyta >> Magnoliopsida >> Cistaceae >> Helianthemum




View text

Sunrose (rockrose, sun rose, rushrose, or even sun rose) occurs as genus of about 110 metal money of evergreen or semi-evergreen subshrubs. It is widely distributed in the Americas, Europe, and from either North Africa to Asia Minor and Central Asia, with a centre of diversity in the Mediterranean region.

A leaves are opposite, elementary ovoid, One-Four cm hanker & Cypher.Five-Two cm broad, variable from either glossy green to tomentous grey-green. A flowers come Two-Four cm across, by using 5 flower petal, whiten or even yellowness, from time to time tinged pink; around the select few metal money a flowers are bicolor sustaining a brilliantly yellow centre to work as a 'target' for pollinating insects.

;Selected species Helianthemum apenninum - White Rockrose Helianthemum bicknellii Helianthemum canadense - Frostweed Helianthemum canum - Hoary Rockrose Helianthemum cinereum Helianthemum corymbosum Helianthemum croceum Helianthemum greenei - Island Rushrose Helianthemum hirtum Helianthemum lunulatum Helianthemum nummularium - Common Rockrose Helianthemum oelandicum - Alpine Rockrose (syn. Helianthemum montanum) Sunrose oelandicum subsp. oelandicum Sun rose oelandicum subsp. alpestre (syn. Sun rose alpestre) Sunrose oelandicum subsp. italicum (syn. Sunrose italicum) Sunrose oelandicum subsp. orientale (syn. Sun rose orientale) Sun rose oelandicum subsp. rupifragum (syn. Sun rose rupifragum) Helianthemum pilosum Helianthemum scoparium - Rushrose Helianthemum suffrutescens - Amador Rushrose

Cultivation and uses
Many Sun rose coinage, & a many hybrids and cultivars derived from the two, come widely grown when ornamental plants, popular in rockeries. a wide range of colours is available among the cultivars, including brilliantly salmon-pink to dark red.

Helianthemum sp.
image






© 2005 GeneralAnswers.org