Die Mattenbildende Felsspiere (Petrophytum caespitosum) ist eine Pflanzenart aus der Gattung Petrophytum in der Familie der Rosengewächse (Rosaceae).
Die Mattenbildende Felsspiere ist ein immergrüner Zwergstrauch, der Wuchshöhen von 4 bis 12 Zentimeter erreicht. Die Blätter sind meist 7 bis 12, selten ab 5 oder bis 14 Millimeter lang, selten ab 1, meist 1,5 bis 4 Millimeter breit und spatelförmig bis verkehrteilanzettlich. Die Blattunterseite ist einnervig. Der Blütenstandsstiel ist 2 bis 8 Zentimeter lang, der Blütenstand 2 bis 5 Zentimeter. Die Kelchzipfel sind lanzettlich-dreieckig. Es sind 20 Staubblätter vorhanden.
Die Blütezeit reicht von Juni bis August.
Die Mattenbildende Felsspiere kommt im Westen der USA in Felsspalten sowie auf abschüssigen Felsfluren auf Kalk und Granit vor.
Die Mattenbildende Felsspiere wird selten als Zierpflanze für Steingärten und Alpinhäuser genutzt.
Die Mattenbildende Felsspiere (Petrophytum caespitosum) ist eine Pflanzenart aus der Gattung Petrophytum in der Familie der Rosengewächse (Rosaceae).
Petrophytum caespitosum (orth. var. Petrophyton caespitosum) is a woody perennial species of flowering plant in the rose family known by the common name mat rock spiraea and native to western United States.
Petrophytum caespitosum is native to the Western United States where it grows in mountainous areas from the Sierra Nevada to the Rocky Mountains. It grows among limestone rocks in forested and woodland habitat and on open limestone bluffs and cliffs.
Petrophytum caespitosum is a very low matted shrub growing in carpets up to 80 centimeters wide, creeping over rocks. The plant often grows on vertical surfaces and hangs by its roots, which cling to cracks in rock. The stems are thick and very short, covered densely in rosettes of oval leaves. Both surfaces of the leaves are lightly covered in short fine hairs, which may not be obvious without close inspection. It produces many inflorescences which are spikelike clusters of flowers arising on erect peduncles up to 10 centimeters tall. Each inflorescence is packed with flowers, each with five tiny white petals, many whiskery stamens, and usually 5 hairy pistils. The flower parts dry and may fall away, leaving a cluster of developing fruits, follicles containing the seeds.[1]
Petrophytum caespitosum (orth. var. Petrophyton caespitosum) is a woody perennial species of flowering plant in the rose family known by the common name mat rock spiraea and native to western United States.
Petrophytum caespitosum là loài thực vật có hoa trong họ Hoa hồng. Loài này được (Nutt.) Rydb. miêu tả khoa học đầu tiên năm 1900.[1]
Bài viết liên quan đến Phân họ Mận mơ này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Petrophytum caespitosum là loài thực vật có hoa trong họ Hoa hồng. Loài này được (Nutt.) Rydb. miêu tả khoa học đầu tiên năm 1900.
