class CommentForm(forms.Form):
    comment = forms.CharField(widget=forms.Textarea())

<label for="id_text">Text:</label>
<textarea id="id_text" rows="10" cols="40" name="text"></textarea>

{{ form.as_p }}

f = ContactForm(auto_id=False)

comment = forms.CharField(label="", help_text="", widget=forms.Textarea())

def __init__(self, *args, **kwargs):
    self.fields['comment'].label = ''