Tag Archive | invasive tree

Common Buckthorn (Rhamnus cathartica) 藥鼠李

Common Buckthorn (Rhamnus cathartica) 藥鼠李

Common Buckthorn (Rhamnus cathartica)  藥鼠李

Common Buckthorn (Rhamnus cathartica) 藥鼠李

Common buckthorn is a rather invasive large shrub or small tree.  The plant can grow up to 6M tall.   Plant has thorn.  In spring it has yellowish green male and female flowers and produce lot of green fruits which ripe in the late summer.  Because it self-seeds easily and its seeds can be stores for years in soil.   If you see this pops out in your property, remember to weed it out!

它是侵入性強勢的植物.  算是大型灌木或是小樹,株高可達6米.  植株有刺.  春天開黃綠色的雄花和雌花,花謝後很快結大量的綠色果實在夏末成熟轉黑.  因為容易結大量的果實,種子可以在土壤中存留數年,所以你若是看到你的地裡長出這種樹應該儘速清除乾淨.

 

 

Tree-of-heaven (Ailanthus altissima) 臭椿

Tree-of-heaven (Ailanthus altissima) 臭椿

Tree-of-heaven (Ailanthus altissima) female tree is loaded with seed pods in fall.臭椿母樹秋天種莢成熟了.

Tree-of-heaven (Ailanthus altissima) female tree is loaded with seed pods in fall.臭椿母樹秋天種莢成熟了.

Tree-of-heaven (Ailanthus altissima) female tree is loaded with seed pods in fall.臭椿母樹秋天種莢成熟了.

Tree-of-heaven (Ailanthus altissima) female tree is loaded with seed pods in fall.臭椿母樹秋天種莢成熟了.

Tree-of-heaven (Ailanthus altissima) female tree is loaded with seed pods in fall.(close up)臭椿母樹秋天種莢成熟了.(近拍)

Tree-of-heaven (Ailanthus altissima) female tree is loaded with seed pods in fall.(close up)臭椿母樹秋天種莢成熟了.(近拍)

I believe almost everyone have seen it.  Such common tree almost everywhere in the world.  It is a fast growing, invasive tree.  It is so weedy and also has foul odour.  It is very difficult to get rid of it, so I hope people can weed the seedlings out.

But it is still has its purpose: medicinal uses and breeding ground of Ailanthus silkmoth (Samia cynthia).

Very hardy, it can grow in any full sun to partial shade location.  USDA Zones:5-8.  Mature size:50′-80′(H) x 40′-60′(W).  Self seed easily.

生長快速的雜樹之一,非常強勢.    能在全日照到半日照處生長.   植株有臭味.  當然它也不是一無是處.  它是有其藥用價值(收斂劑)和樗蠶(Samia cynthia)產卵的植物.  不過這樹很難清除,常常再長出.  希望人們在除雜草時能將小苗清除.

它非常強健,能生長在任何全日照到半日照的環境. 耐寒. 成熟株高約50-80呎,寬幅約40-60呎.  容易落子自行繁殖.