肥彁 @ 周一 5月 08, 2017 2:18 pm 写道: 既然是这么名贵的东西,我觉得还是找个方法试试它有没有毒。
起码,你要查查加拿大有没有这东西出产,不可能光你家后院出,我家后院不出,这不公平。

维基百科上说北美有, 这是中文的:
生长环境[编辑]
羊肚菌在山火之后的两至三年内产量特高,因此北美的采摘者会根据山火来采集羊肚菌。
然而,当火灾被控制后,在同一个地区内,它的生长数量会年复一年地减少。
到目前为止,还没能证实羊肚菌与任何的树种有特殊的共生关系,但有经验的采摘者坚信其中有关联。那些通常和羊肚菌联系在一起的树包括白蜡树、美国梧桐、鹅掌楸、已经死亡或将要死亡的榆树、杨木和老的苹果树。
此外,通常落叶植物附近会比松柏目植物附近更容易找到羊肚菌。
目前,羊肚菌还没有被成功地大规模种植,主要是野生。
英文的, 说加拿大有:
Habitat and distribution[edit]
Drawing by von Albin Schmalfuß, 1897
Fruit bodies are sometimes found solitary, but more often in groups, on the ground in a variety of habitats. A preference for soil with a limestone base (alkaline) has been noted,[5] but they have also been found in acid soils.[17] The mushroom is usually found in early spring, in forests, orchards, yards, gardens and sometimes in recently burned areas.[8] In North America, it is sometimes referred to as the "May mushroom" due to its consistent fruiting in that month, but the time of fruiting varies locally, from February to July. It is typically the last morel species to fruit in locales where more than one species are found.[18] For example, in northern Canada and in cooler mountainous regions, morels typically do not appear until June.[19] It has been suggested that the springtime fruiting may be due to their ability to grow at low temperatures to the exclusion of competition,[20] a conclusion later corroborated by experiments correlating spore germination to soil temperatures.[21]
One author suggests the acronym PETSBASH may be used to remember the trees associated with morels: pine, elm, tulip, sassafras, beech, ash, sycamore, and hickory.[22]
In North America, it is widely distributed, but especially common in eastern North America and the Midwest. David Arora notes that "large crops can also be found around the bases of dying (but not quite dead) elms attacked by Dutch elm disease."[16] The species has been named state mushroom of Minnesota, and was the first state mushroom of any state.[23][24]
It can also be found in Brazil and Bulgaria.[25]