... cutting only ⅓ to ⅔ of the way in C. menziesii and C. nealiae ... A natural hybrid, Cibotium chamissoi x C. menziesii, named C. x heleniae after fern ...

... menziesii from C. chamissoi and C. glaucum (but not C. nealiae) is the ... A natural hybrid, Cibotium chamissoi x C. menziesii, named C. x heleniae ...